Ammunition
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Ammunition is a skill and enemy mechanic in Arknights.
Skill
| “ | Skill activation grants {amount} ammo and the skill ends when all ammo are used (Can manually deactivate skill). | ” |
| —Description of most Operator skills that use the ammunition mechanic |
Skills that use the ammunition mechanic does not end after a period of time. Instead, as soon as the skill is activated, it receives a number of ammo that is expended in each attack; the skill will only end once all ammo is depleted and can also be manually deactivated in order to expedite its reactivation.
From the Near Light update, skills that use the ammunition mechanic uses a special meter that displays its ammo count more accurately as orange bars; before this, the skill's meter is the same as the others.
| Operator | Source | Ammo count | Effect |
|---|---|---|---|
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 Assault Tactics |
31 | Reduces the attack interval by 80% and increases the damage dealt against Stunned enemies:
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 Artificial Snowfall |
9 | Inflicts Cold for 2.5 seconds and increases the damage dealt against Frozen targets:
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 Specular Reflection |
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Increases ATK and ASPD, and camouflages Cantabile.
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 High-Pressure Splash |
4 | Increases ATK and applies the trait to all enemies in range instead of those in the frontal row:
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 "Night of Violet" |
8 (20 when Overcharged) | Increases ATK and creates a goo that reduces the DEF and speed of enemies (lasting 5 seconds).
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 "Holiday Storm" |
32 | Attacks twice, consuming 2 ammo each time, with extended attack range, increased ATK, applies the trait to all enemies in range instead of those in the frontal row, and creates a goo that reduces the DEF and speed of enemies (lasting 5 seconds). □
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 Testament Exacted |
8 | Extends attack range, increases ATK, and attacks ignore some DEF. □□
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 Close Combat |
12 | Increases ATK and DEF, and block count by 1.
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 Damnatus Ex Foedere |
16 | Extends attack range and increases ATK, but increases attack interval by 0.5 seconds. □□
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 Tempest Command |
10 | Increases the damage dealt; also deals an additional instance of Arts damage when Overloaded.
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 "Don't Invite Trouble" |
4 | Increases the damage dealt by attacks.
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 "Problem Solver" |
14 | Increases ATK, reduces attack interval by 0.3 seconds, gives Negative Taunt, and causes Insider to attack enemies with ranged attacks over the others.
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 Saturation Burst |
20 | Extends attack range by 1 tile, increases ATK and DEF, and the Mobile Riot Shield's DEF, but increases attack interval by 0.6 seconds.
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 This Lantern Undying |
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Increases ATK and ASPD, and makes Lumen heal friendlies with Negative Statuses over the others. The ammo is only expended when healing friendlies with Negative Statuses, which increases the amount of HP restored and cures all Negative Statuses on them.
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 Portable Fortcracker Arrows |
10 | Increases the damage dealt but increases attack interval by 30%; the arrows explode after a delay of 1.5 seconds to deal splash Physical damage over a radius of 1.2.
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 "Eternal Hunt" |
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Attacks fire arrow barrages that hits random targets multiple times around the target marked upon activation (and their position once the target leaves the map) and Stuns them for 0.4 seconds, but increases attack interval by 3.1 seconds.
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Interactions
| Operator | Subject | Interaction |
|---|---|---|
|
Frugality | |
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Close Combat |
Has a chance to dodge the attack and receives 1 ammo when attacked in melee.
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Damnatus Ex Foedere |
Further increases the ATK buff whenever the Ex Foedere expends ammo, which can stack up to 30 times.
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| The Chosen One | For each ammo expended, the proc chance of The Chosen One is increased, which is reset when the Ex Foedere's skill expires.
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| Empathy by Shotgun | Each Laterano Operator on the map increases the Ex Foedere's ammo count by 1, up to 4. | |
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Fire Support | Increases the ammo count of Insider's skill after he has been deployed for 20 seconds. At Elite 2, Fire Support also increases the ammo count of other Laterano Operators' skills (if they use the ammunition mechanic) by 1.
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Enemy
| “ | While this unit is holding Ammo, {effect}. Ammo capacity: {amount} | ” |
| —Trait of enemies that use the Ammunition mechanic |
Certain enemies, nearly all of which are Lateran ones, use the ammunition mechanic where their ranged attacks have additional effects and will be used over their melee attack while they are blocked as long as the ammo supply holds out, which can only be reloaded by being in the vicinity of a hostile Gelato Stop although some are capable of reloading their ammo without Stops.[note 1]
| Enemy | Ammo count | Effects |
|---|---|---|
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1 | The attack deals double damage. |
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The attack inflicts Burn Damage equal to 150% of the Artifex's ATK. | |
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2 | The attack deals splash damage affecting friendly units in the surrounding tiles to the target and deals an additional instance of 3000 Arts damage against Gelato Stops. |
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3 | Not used for attacks, but spawning a (Luscious) Snack Cart 5 seconds after spawning and every 15 seconds afterward. |
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1 | The attack disarms the target for 15/10 (Oren) seconds and deals an additional instance of 3000 damage against Gelato Stops. |
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5 |
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10 | The attack reduces the target's DEF by 300, which can stack without a limit. |
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3 |
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1 | |
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3 | The attack causes the player to lose 2/3 (Leader) DP upon hitting a friendly unit. |
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6 |
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Notes
- ↑ Technically enemies with the ammunition mechanic uses SP to count the remaining ammunition which can only be recovered/restored by Gelato Stops or their ability.