Summon

In Arknights, summons are units that are deployed by certain Operators to help them offensively or defensively.

Unless noted otherwise, all summons will be forcibly retreated when the Operator that deploys them leaves the map.

List

• For a list of Traps used by Trapmaster Specialists, see Summon/Trap.
• For a list of Reinforcements used by Tactician Vanguards, see Summon/Reinforcement.
• For a list of Support Devices used by Artificer Supporters, see Summon/Support Device.

Summon	Operator	Use
"Blazing Sun"		Deals True damage to nearby enemies and Stuns them when deployed. Cannot be deployed at will, instead automatically deployed when Blazing Sun's Obeisance is activated. Not counted towards the Unit Limit but will self-destruct when Blazing Sun's Obeisance expires.
Champagne Bomb		Explodes when a ground enemy steps on it, dealing Physical damage and Slowing enemies in a cross-shaped area when triggered, with the former dealt twice if the Bomb has been deployed for at least 3 seconds. Cannot be deployed at will, instead deployed through "Courtesy Gift".
Clockwork Fowlbeast		Uses a ranged Arts attack that deals more damage against Machinas.
Cursed Doll		Reduces the ATK and DEF of surrounding enemies. Invulnerable and not counted towards the Unit Limit, but will self-destruct after a period of time.
"Freeling"		Attacks deal Arts damage. Cannot be deployed at will, instead deployed through Image Over Form and Finishing Touch. Not counted towards the Unit Limit but will self-destruct after a period of time.
Front Toward Enemy		Explodes when a ground enemy is too close, dealing Physical damage and Stuns enemies in the surrounding tiles. Cannot be deployed at will, instead automatically deployed through Jack in the Box. Will disappear if not triggered after 120 seconds.
Golden Vows		Attacks deal True damage. Cannot be deployed at will, instead automatically deployed when And All Be In My Name is activated. Not counted towards the Unit Limit but will self-destruct when And All Be In My Name expires.
Industrial Water Cannon		Push enemies back in each attack. Invulnerable and not counted towards the Unit Limit, but will self-destruct after a period of time.
Kaminingyo		Behaves identically to Kazemaru's Substitute. Cannot be deployed at will, instead deployed through Origami Art - Twin Shadows. Not counted towards the Unit Limit but will self-destruct when the skill expires.
Ling's Summons		Varies depending on the skill used; see article for details. Up to three (four with Ling's upgraded SUM-Y Operator Module) may be deployed at a time.
Medic Drone		Heals surrounding friendly units. Invulnerable and not counted towards the Unit Limit, but will self-destruct after a period of time.
Mirage		Has high HP and RES, and increased aggression, and can often dodge Physical attacks. Not counted towards the Unit Limit but loses HP over time.
Mobile Buggy Cam		Reveals invisible enemies in the surrounding tiles. Also slightly reduces the speed of nearby enemies with Scene's upgraded SUM-X Operator Module.
Mobile Riot Shield		Has increased aggression and changes Jessica the Liberated's facing to where the M.R. Shield is deployed. Can only be deployed in the adjacent tiles to the Liberated and not counted towards the Unit Limit, but will self-destruct after a period of time.
Mon3tr		Can only be directly healed by Kal'tsit herself and will have 0 DEF if deployed outside her range.
Night Banisher		Applies Silent Sentinel with greater effectiveness to friendly units within its range. Only available for deployment while Overlooking Vision is active. Invulnerable and not counted towards the Unit Limit, but will self-destruct when Overlooking Vision expires.
Old Day Remnant		Detonates when a ground enemy is too close, dealing Arts damage and dragging enemies in the surrounding tiles towards the Remnant. Cannot be deployed at will, instead automatically deployed through Desolate Echoes. Will disappear if not triggered after 30 seconds.
Phantom in the Mirror		A weaker illusory double of Phantom which shares his skill and has an independent redeployment time than Phantom himself.
Revenant's Shadow		Attacks enemies within Wiš'adel's range when its skill is charged, which Slows the target and attaches an afterimage that may explode to deal splash Physical damage and Stun enemies in an area when hit by the aftershock of Wiš'adel's attacks. Cannot be deployed at will, instead deployed through Revenant's Echo and Explosive Dawn.
Robotter		Reduces the ASPD of blocked enemies.
Rosmontis's Tactical Equipment		Reduces the DEF of blocked enemies and Stuns nearby enemies when deployed. Cannot be deployed at will, instead automatically deployed when "As You Wish" is activated. Not counted towards the Unit Limit but will self-destruct when "As You Wish" expires.
Sandbeast		Extends Ray's range to its own range. Invulnerable and not counted towards the Unit Limit, but will self-destruct after a period of time.
Sand Obelisk		Stuns nearby enemies when deployed. Cannot be deployed at will, instead automatically deployed when Guardian Obelisk is activated. Not counted towards the Unit Limit but will self-destruct when Guardian Obelisk expires.
Skadi's Seaborn		Extends the Corrupting Heart's range. Invulnerable and not counted towards the Unit Limit, but will self-destruct after a period of time.
Soaring Dragon		Varies depending on the skill used; see article for details. Up to three (four with Magallan's upgraded SUM-Y Operator Module) may be deployed at a time.
Tentacle		Nothing special
"Typewriter"		Attacks enemies in a range of up to three tiles straight ahead with lower ATK than Pozëmka but benefits from her skills.