Phantom & Crimson Solitaire: Deep Investigation

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A list of Phantom & Crimson Solitaire's Deep Explorations, named Deep Investigation.

List

#1: Helter-Skelter
IS2 Investigation 1.png
Considering the extremely urgent nature of this field operation, after much deliberation, the commander has been authorized to dispatch four elite operators. Please resolve the incident as quickly as possible, and bring Operator Phantom back in one piece.

  • Unable to perform Initial Recruitment, but instead start with 4 Elite Operators
  • The probability of encountering an Emergency Operation is greatly increased
  • The castle's overall layout differs from usual. Please proceed with caution.
Mission Objective Enter 6 combat nodes.
Starting resources
8 Life Points.png 0 Hope.png 8 Originium Ingot icon.png 4 Squad size
Initial Operators Cannot recruit Operators at the start. Instead, the player starts with all four Elite Operators (Pith, Sharp, Stormeye, and Touch).
Initial Collectibles None
Available Squads Leader Squad.png Leader Squad, Gathering Squad.png Gathering Squad, Support Squad.png Support Squad, Spearhead Squad.png Spearhead Squad, and Research Squad.png Research Squad
Environment Emergency Operations are more likely to appear over Operations.
Rewards
Polymerization Preparation
1
White Horse Kohl
2
Tactical Battle Record
10
LMD
10K
Skill Summary - 1
15
#2: Living On The Edge
IS2 Investigation 2.png
Who's really the one with their back to the wall?

Mission Objective Enter 4F.
Starting resources
1 Life Points.png 6 Hope.png 8 Originium Ingot icon.png 8 Squad size
Initial Operators No restrictions
Initial Collectibles
  • End of Times.png "End of Times" (once in the run, upon failing an (Emergency) Operation, proceed to the next node and gains 1 Life Points.png instead)
  • King's New Lance.png King's New Lance (friendly ASPD +50 when there is only 1 Life Points.png left)
Available Squads Spearhead Squad.png Spearhead Squad
Environment There will be less opportunities to obtain additional Life Points.
Rewards
Bipolar Nanoflake
1
Orirock Concentration
2
Tactical Battle Record
10
LMD
10K
Skill Summary - 1
15
#3: Tycoon
IS2 Investigation 3.png
Earning money is an art, as is spending it.

  • Begin with the following collectibles: Proof of Friendship, Supreme Ring.
  • Start exploration with the Support Squad.png Support Squad
  • A special zone layout will be used, and the probability of encountering the Rogue Trader or a combat node is greatly increased
  • The castle's overall layout differs from usual. Please proceed with caution.
Mission Objective Spend 100 Originium Ingot icon.png.
Starting resources
4 Life Points.png 6 Hope.png 32 Originium Ingot icon.png 6 Squad size
Initial Operators No restrictions
Initial Collectibles
Available Squads Support Squad.png Support Squad
Environment
  • All odd-numbered nodes (1st, 3rd, 5th, etc.) are Rogue Traders, while even-numbered nodes (2nd, 4th, etc.) are Operations. The last node of 3F and 5F remain Dreadful Foes, however.
  • The first node in 5F have 6 branches.
  • The Rogue Trader have 8 wares and may sell Collectibles that normally cannot be purchased from him.
Rewards
D32 Steel
1
Oriron Block
2
Tactical Battle Record
10
LMD
10K
Skill Summary - 1
15
#4: Suppressive Fire
IS2 Investigation 4.png
Who needs a front line when you have enough firepower to blast through all obstacles?

Mission Objective Recruit 10 Casters or Snipers.
Starting resources
4 Life Points.png 8 Hope.png 8 Originium Ingot icon.png 8 Squad size
Initial Operators Only the following Rec. Vouchers are available as the initial options:
Initial Collectibles
Available Squads All but Tactical Assault Squad.png Tactical Assault Squad, Tactical Fortification Squad.png Tactical Fortification Squad, and First-Class Squad.png First-Class Squad
Environment
  • Caster and Sniper Rec. Vouchers (including their Elite versions, Ranged/Sabotage Co-op Rec. Vouchers, and Backline Corps Rec. Voucher.png Backline Corps Rec. Voucher), and Collectibles beneficial for the aforementioned classes are more likely to appear.
  • The Rogue Trader have 6 wares and the one in 1F always sells a Vanguard and Medic Rec. Voucher.
  • Defender, Guard, Specialist, and Vanguard Rec. Vouchers (including their Elite versions, Assault/Fortification Co-op Rec. Vouchers, and Frontline Corps Rec. Voucher.png Frontline Corps Rec. Voucher) are no longer awarded from clearing operations.
Rewards
Crystalline Electronic Unit
1
Keton Colloid
2
Tactical Battle Record
10
LMD
10K
Skill Summary - 1
15
#5: Ground Offensive
IS2 Investigation 5.png
Who needs backup when your squad is strong enough to shred right through the enemy's line of defense?

Mission Objective Recruit 10 Defenders or Guards.
Starting resources
4 Life Points.png 8 Hope.png 8 Originium Ingot icon.png 8 Squad size
Initial Operators Only the following Rec. Vouchers are available as the initial options:
Initial Collectibles
Available Squads All but Tactical Ranged Squad.png Tactical Ranged Squad, Tactical Destruction Squad.png Tactical Destruction Squad, and First-Class Squad.png First-Class Squad
Environment
  • Defender and Guard Rec. Vouchers (including their Elite versions, Assault/Fortification Co-op Rec. Vouchers, and Frontline Corps Rec. Voucher.png Frontline Corps Rec. Voucher), and Collectibles beneficial for the aforementioned classes are more likely to appear.
  • The Rogue Trader have 6 wares and the one in 1F always sells a Vanguard and Medic Rec. Voucher.
  • Caster, Medic, Sniper, and Supporter Rec. Vouchers (including their Elite versions, Ranged/Sabotage Co-op Rec. Vouchers, and Backline Corps Rec. Voucher.png Backline Corps Rec. Voucher) are no longer awarded from clearing operations.
Rewards
Polymerization Preparation
1
Polymerized Gel
2
Tactical Battle Record
10
LMD
10K
Skill Summary - 1
15
#6: Inscrutable Path
IS2 Investigation 6.png
The road in front of us isn't the only thing obscured from sight, but that is no reason to stop pushing on.

Mission Objective Gain 20 Hope.png (those given at the start are not counted).
Starting resources
4 Life Points.png 6 Hope.png 8 Originium Ingot icon.png 6 Squad size
Initial Operators No restrictions
Initial Collectibles
Available Squads All but Support Squad.png Support Squad
Environment The Blind Hallucination is always active.
Rewards
Bipolar Nanoflake
1
Incandescent Alloy Block
2
Tactical Battle Record
10
LMD
10K
Skill Summary - 1
15
#7: Bizzare Adventures
IS2 Investigation 7.png
When words become your sword and shield, will you still be able to successfully bring Phantom back to Rhodes Island?

Mission Objective Enter 5F.
Starting resources
4 Life Points.png 6 Hope.png 8 Originium Ingot icon.png 6 Squad size
Initial Operators No restrictions
Initial Collectibles
Available Squads All
Environment
  • No (Emergency) Operations will appear. However, "About That Ursus Man", "Art and Madness", "Duck Lord's Improv", "Duck Lord's Party", "Duck Lord the Lead Actor?", "Phantom Ramblings", "Shackled Bloodline", and "Sleeping Statue" Encounters which can force the player into Operations still could appear.
  • The "Musical Challenge" Encounter will never appear since the player starts with its reward, "Magnificent Visage".
Rewards
D32 Steel
1
Crystalline Circuit
2
Tactical Battle Record
10
LMD
10K
Skill Summary - 1
15
#8: Unconventional Methods
IS2 Investigation 8.png
When a mission is on the verge of failure, anything can be exchanged as a resource to tip the scales. Even the command terminal is no exception.

Mission Objective Let 30 enemies enter Protection Objectives.
Starting resources
8 Life Points.png 6 Hope.png 8 Originium Ingot icon.png 6 Squad size
Initial Operators No Operators may be recruited at the start!
Initial Collectibles
  • End of Times.png "End of Times" (once in the run, upon failing an (Emergency) Operation, proceed to the next node and gains 1 Life Points.png instead)
  • Eventide Terror.png "Eventide Terror" (enemies present are Stunned for 5 seconds when one enters a Protection Objective)
  • Excessiveness.png "Excessiveness" (enemies present takes 3000 Pure damage when one enters a Protection Objective)
Available Squads Leader Squad.png Leader Squad
Environment There will be more opportunities to obtain additional Life Points.
Rewards
Crystalline Electronic Unit
1
Manganese Trihydrate
2
Tactical Battle Record
10
LMD
10K
Skill Summary - 1
15
#9: Lost in a New World
IS2 Investigation 9.png
Being lost isn't necessarily a bad thing. This time, you will explore more possibilities.

Mission Objective Obtain 15 Collectibles (those given at the start are not counted).
Starting resources
4 Life Points.png 6 Hope.png 8 Originium Ingot icon.png 6 Squad size
Initial Operators No restrictions
Initial Collectibles
Available Squads All
Environment
  • There will be more (Emergency) Operations.
  • The "Bewildered" Hallucination is always active (replaced by "Blind" in 6F).
Rewards
Polymerization Preparation
1
Grindstone Pentahydrate
2
Tactical Battle Record
10
LMD
10K
Skill Summary - 1
15
#10: Starting From Scratch
IS2 Investigation 10.png
Saving up is a good habit. It can satisfy your heart's desire to hoard, while also delivering an acute headache to your enemies.

Mission Objective Obtain 100 Originium Ingot icon.png (those given at the start are not counted).
Starting resources
4 Life Points.png 6 Hope.png 0 Originium Ingot icon.png 6 Squad size
Initial Operators No restrictions
Initial Collectibles
Available Squads All but Support Squad.png Support Squad
Environment
  • The last node of 1F is an Encounter instead of Rogue Trader.
  • Rogue Traders are less likely to appear.
  • Collectibles that give Originium Ingots are less likely to appear.
Rewards
Bipolar Nanoflake
1
RMA70-24
2
Tactical Battle Record
10
LMD
10K
Skill Summary - 1
15
#11: Ark Raiders
IS2 Investigation 11.png
What kind of treasure will we get our hands on today? I'm really looking forward to it.

Mission Objective Enter 3 Dreadful Foes.
Starting resources
8 Life Points.png 18 Hope.png 16 Originium Ingot icon.png 8 Squad size
Initial Operators No restrictions
Initial Collectibles
Available Squads All
Environment
Rewards
D32 Steel
1
White Horse Kohl
2
Tactical Battle Record
10
LMD
10K
Skill Summary - 1
15
#12: Life is a Game
IS2 Investigation 12.png
Have a chat with Lady Luck before setting out on your mission. Does she want to be your companion today, or your enemy?

  • Begin with the following collectibles: Proof of Longevity, Banshee's Kiss, Flawless Jadestone
  • A special zone layout will be used, and the probability of encountering an Downtime Recreation node is greatly increased
  • Random hallucinations will regularly trigger during exploration
  • The castle's overall layout differs from usual. Please proceed with caution.
Mission Objective Enter 6 Downtime Recreations.
Starting resources
16 Life Points.png 12 Hope.png 32 Originium Ingot icon.png 6 Squad size
Initial Operators No restrictions
Initial Collectibles
Available Squads All
Environment
  • The last node of 1F, 2F, and 4F are Downtime Recreations.
  • The second node of 1F is a Downtime Recreation.
  • There will be more Downtime Recreations.
  • A random Hallucination is always active.
Rewards
Crystalline Electronic Unit
1
Optimized Device
2
Tactical Battle Record
10
LMD
10K
Skill Summary - 1
15

Strategy

Helter-Skelter
In this Deep Investigation, the player will start with all four Elite Ops: Pith, Sharp, Stormeye, and Touch, in return for not being able to recruit Operators when starting the run. In addition, Emergency Operations will appear more often than Operations, and the player cannot choose the Tactical Operative Squads and the First-Class Squad. To complete the Mission Objective, the player must enter 6 operation nodes.
  • It is highly advised to pick Gathering Squad since the squad size is reduced to only 4, making Rec. Vouchers useless if they are not of the four Elite Ops' classes.
Living on the Edge
In this Deep Investigation, the player will start with only a single Life Point, thus they must be very careful to not let any enemy waltz into a Protection Objective especially early in the run, which could end it before it even starts! To compensate this however, the player is given King's New Lance.png King's New Lance which buffs the ASPD of friendlies so long as the player has only 1 Life Points.png and End of Times.png "End of Times" to give the player a "second wind" if they somehow screwed up, and can only pick Spearhead Squad which buffs friendlies' ATK and DEF (with the drawback being redundant as the player already starts with 1 Life Points.png). To complete the Mission Objective, the player must make their way into 4F.
  • Encounters that would give additional Life Points will rarely appear.
Tycoon
In this Deep Investigation, the nodes will alternate between a Rogue Trader and an (Emergency) Operation, and the player is given Supreme Ring.png Supreme Ring and Proof of Friendship.png Proof of Friendship which increases Originium Ingot.png Originium Ingot gain from operations by a total of 95%, in addition to starting with 32 Originium Ingot icon.png. Furthermore, Cannot will be more generous than usual; he will always have eight wares in stock and may sometimes sell Collectibles that normally aren't available as his wares! To complete the Mission Objective, the player must spend a total of 100 Originium Ingot icon.png in Rogue Traders.
Suppressive Fire
In this Deep Investigation, the player will have to pick two Casters and two Snipers as their initial Operators (but one Rec. Voucher of each class will be an Elite Rec. Voucher) and starts with the Collectibles Necklace of the Presence 2.png Necklace of the Presence to buff ranged friendlies' ATK, Dreaming Essence.png Dreaming Essence and Royal Liqueur 2.png Royal Liqueur to speed up the charging process of skills, and Shadow.png "Shadow" to make Temporary Recruitment Operators show up more often than usual, but cannot pick Tactical Assault/Fortification Operative and First-class Squad. To complete the Mission Objective, the player must recruit 10 Casters/Snipers (including the starting ones, so 6 more will suffice).
  • Rec. Vouchers and Collectibles related to ranged Operators will be more likely to appear, but those related to melee Operators will be much less likely to appear instead. However, the Rogue Trader is 1F will always sell a Medic and Vanguard Rec. Voucher to ensure that the player have proper DP generation and healing support.
Ground Offensive
In this Investigation, the player will have to pick two Defenders and two Guards as their initial Operators (but one Rec. Voucher of each class will be an Elite Rec. Voucher) and starts with the Collectibles Emperor's Favor.png Emperor's Favor to buff melee friendlies' ATK, Ribbon of Honor.png Ribbon of Honor and Loyality.png "Loyality" to enhance friendly melee units when blocking enemies, and Shadow.png "Shadow" to make Temporary Recruitment Operators show up more often than usual, but cannot pick Tactical Ranged/Destruction Operative and First-class Squad. To complete the Mission Objective, the player must recruit 10 Defenders/Guards (including the starting ones, so 6 more will suffice).
  • Rec. Vouchers and Collectibles related to melee Operators will be more likely to appear, but those related to ranged Operators will be much less likely to appear instead. However, the Rogue Trader is 1F will always sell a Medic and Vanguard Rec. Voucher to ensure that the player have proper DP generation and healing support.
Inscrutable Path
In this Deep Investigation, the Blind (and only Blind) Hallucination will always occur on every floor and the player are given all three Collectibles awarded from the "Eccentric Hunchback" Encounter: Bladedance.png "Bladedance", Shadow.png "Shadow", and Whiteflower.png "Whiteflower", as well as one of the six Proof of Glory Collectibles normally only awarded by starting a Calamity Faceoff run. To complete the Mission Objective, the player must obtain a total of 20 Hope.png excluding those given at the start.
  • Try to receive Gaul Mantle.png Gaul Mantle as the increased Hope cost to recruit/promote Operators are manageable enough, but avoid Leithanien Sceptre.png Leithanien Sceptre or Sigil of Tragodia.png Sigil of Tragodia, particularly the latter as it significantly slows the player's Command Level progression, which the primary source of Hope.
  • Never add Operators with 25 or higher DP costs to the squad, as the shuffled costs of Operators due to "Whiteflower" can lead to unexpected moments such as Gravel's cost becoming that of Ifrit's!
  • All the aboves makes Inscrutable Path the most difficult Deep Investigation, but don't be afraid to quit-out and restart if things aren't going as the player intended.
  • Remember to obtain any Collectibles that gives out Hope to complete the Objective faster.
Bizzare Adventures
In this Deep Investigation, there are no combat nodes other than the Dreadful Foes in 3F, 5F, and 6F to worry about. To complete the Mission Objective, the player must make their way into 5F.
  • Encounters which can force the player into an ISW-DU or ISW-SP Operation (e.g. "Shackled Bloodline" and Duck Lord ones) may still show up, however.
  • The player is also given Lucky Coin 2.png Lucky Coin, Masquerade Mask.png Masquerade Mask, and Magnificent Visage.png "Magnificent Visage", thus they will receive a total of 5 Originium Ingot icon.png and 1 Hope.png whenever they enter a non-operation node.
    • Since the player starts with "Magnificent Visage", the "Musical Challenge" Encounter will never appear.
  • As there are no (Emergency) Operations outside the possibility of being forced into ISW-DU/ISW-SP ones through Encounters, Operator recruitment and promotion will be very difficult and can make facing the Dreadful Foes (which is mandatory) a challenge. Using Tactical Operative Squads will greatly help in this regard, as these will make Operators of certain classes immediately promoted when recruited.
  • Due to how easy it is to gain resources, don't be stingy and spend all of them in Rogue Traders and Downtime Recreations whenever possible to receive everything that could help in tackling this challenge, be it Rec. Vouchers, Collectibles, and Tactical Props.
Unconventional Methods
In this Deep Investigation, the player will be unable to recruit any Operators when starting the run, thus they must somehow clear the first operation to be able to recruit one! Thankfully, the player is given Eventide Terror.png "Eventide Terror" and Excessiveness.png "Excessiveness" to damage and Stun enemies whenever one enters a Protection Objective, and End of Times.png "End of Times" to give a "second wind" in case the two aforementioned Collectibles aren't enough, and can only pick Leader Squad which gives 4 Objective Shields in operations. To complete the Mission Objective, the player must leak no less than 30 enemies.
  • Encounters that give additional Life Points will appear more often because the player will mostly have to rely on "Eventide Terror" and "Excessiveness" to deal with the enemies.
Lost in a New World
In this Deep Investigation, the Bewildered (and only Bewildered) Hallucination will always occur on every floor which will also have more combat nodes than usual, and the player are given Four-Leaf Clover Fossil.png Four-Leaf Clover Fossil to expand the Collectibles awarded from operations and Crimson Troupe Ticket Stub.png Crimson Troupe Ticket Stub to occasionally award a second Rec. Voucher from clearing operations. To complete the Mission Objective, the player must obtain a total of 15 Collectibles excluding the aforementioned.
  • If the player manages to enter 6F, Bewildered is replaced by Blind due to the fixed nodes.
Starting From Scratch
In this Deep Investigation, the player will start with no Originium Ingots and cannot pick the Support Squad, but are given Masquerade Mask.png Masquerade Mask and Supreme Ring.png Supreme Ring to increase their Ingot gain, and Golden Chalice.png Golden Chalice to buff friendly units' ASPD for every 5 Originium Ingot icon.png the player have. To complete the Mission Objective, the player must obtain a total of 100 Originium Ingot icon.png.
  • The Rogue Trader will rarely appear and the last node of 1F is substituted by an Encounter.
  • Collectibles that give out additional Ingots rarely, if ever, awarded, so the player will have to rely on the Masquerade Mask and clearing operations to gain Ingots.
  • As the goal is to only earn the Ingots, feel free to spend them in Rogue Traders (if they do appear) and Downtime Recreations, but try to save up as many Ingots as possible to maximize the Chalice's effect.
Ark Raiders
In this Deep Investigation, 1F, 2F, and 4F will have a Dreadful Foe at the end, which is randomly chosen from those that would appear in 3F (but the same Dreadful Foe will never appear more than once). To compensate, the nodes that precede the Dreadful Foes will be nothing but at most four Boons and a Rogue Trader. To complete the Mission Objective, the player must enter 3 Dreadful Foes.
  • The player is also given Victorian Scrap Medal.png Victorian "Scrap" Medal and Leithanian Medal of Honor.png Leithanian Medal of Honor which increases the Command EXP gain by a total of 56% to offset the fact that there are no combat nodes other than the Dreadful Foes at all. Also, the Rogue Trader will always have 8 wares with most of them being Rec. Vouchers.
  • Hallucination(s) will always occur on every floor, so take caution.
Life is a Game
In this Deep Investigation, Downtime Recreations will show up more often; the last nodes of 1F, 2F, and 4F will be Downtime Recreations, and the second node of 1F will be a Downtime Recreation. The player also starts with a good amount of resources to aid them in trying their luck in the Recreations, and are given Proof of Longevity.png Proof of Longevity, Banshee's Kiss.png Banshee's Kiss, and Flawless Jadestone.png Flawless Jadestone which further increases the starting resources to 26 Life Points.png, 20 Hope.png, and 57 Originium Ingot icon.png! To complete the Mission Objective, the player must enter 6 Downtime Recreations.