Theresa, Black-Crowned Loremistress
| NPC | Black-Crowned... | Enemy | Sarkaz King | Trivia |
| This article pertains to a subject that is not yet released in the Global server of Arknights. |
| This device's name, talent name(s) and description(s), and skill name(s) and description(s) are tentative translations which may not represent the official English localization and will be updated when Sarkaz's Furnaceside Fables is announced or released in the Global server of Arknights. |
Theresa is also a static device in Sarkaz's Furnaceside Fables under the name Theresa, Black-Crowned Loremistress.
Fighting alongside her brother, the Black-Crowned Overlord, Theresa is invulnerable, immobile, and cannot attack normally. Instead, she will confer Theresis offensive and defensive buffs depending on their proximity while gradually charging up her skill, recovering 35 SP when hit by Theresis' Protect skill, and 3 SP whenever a Sarkaz enemy on the field is defeated. In addition, Theresa will also summon a Master's Shade every 10 seconds on preset tiles, gradually filling them in over time.
Whenever her skill is ready, Theresa will briefly charge up before unleashing a shockwave dealing Arts damage to all friendly units on the map, while also summoning a small wave of enemies that are not included in the enemy counter (two Sarkaz Wither Devourers and two Sarkaz Wither Maws). The damage of the shockwave will also increase permanently every time Theresa uses it, up to a limit, encouraging players to prevent her from using it altogether.
When Theresis enters his second phase, all Master's Shades will vanish and Theresa will no longer summon more, but Theresis will teleport to her side and start rapidly filling her SP at a rate based on their proximity, allowing her to repeatedly use her skill with no way to completely stop it. Due to the ramping damage and frequency of Theresa's attacks in this phase, it is imperative to take down Theresis as fast as possible before Theresa inevitably overwhelms defenders with damage and enemies, or at least find a way to separate the two to slow down Theresa's skill charging and render Theresis more vulnerable to damage.
When Theresis is defeated, Theresa will unleash one final Arts attack dealing 5× her ATK to all friendly units (equivalent to a cast of her skill at maximum power) before the two siblings are defeated for good; caution is advised to prevent this final blow from leaving a lineup vulnerable to any remaining enemies.
Appearances
| Integrated Strategies | Audience |
|---|
Stats
| Recovers a certain amount of SP when a Sarkaz enemy is defeated | |||
| Range | |||
|---|---|---|---|
■ | |||
| HP | ATK | DEF | RES |
| 100000 | 1000 | 500 | 50 |
| DP cost | Redeployment time | Block count | Attack interval |
| N/A | N/A | 0 | 1 second |
Talent
| 魔王的存续 | |
|---|---|
| Summons a Master's Shade at regular intervals | |
Skill
 |
意志震荡 Auto Recovery Auto | |||
|---|---|---|---|---|
| Effect | 
|
|
| |
| Deals Arts damage to all allied units on the battlefield and summons several enemies. The damage dealt by 意志震荡 increases in each use | 0 | 100 | – | |
| Addendum | ||||
| The damage dealt by 意志震荡 starts at 50% ATK and increases by 20% in each use, which caps at 500%. | ||||