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Defender is one of the eight Operator classes in Arknights.

Overview[]

Defenders have high HP and DEF and can block up to three enemies, with few exceptions. However, they have low ATK and (with certain exceptions) a very short attack range – on the same tile as themselves. For this reason, Defenders are best placed in front of a formation to hold enemies back, draw enemy fire, and protect friendly units behind them.

Branches[]

Branch Trait
Protector Defender
Protector
Blocks 3 enemies
Tank Operator
Guardian Defender
Guardian
Can heal allies by using the skill
Tank Operator with the ability to restore the HP of friendly units with their skills
Juggernaut Defender
Juggernaut
Cannot be healed by allies
Very strong tank Operator that cannot be actively healed but can improve their survivability with their skills/talent(s)
Arts Protector Defender
Arts Protector
Normal attacks deal Arts damage while the skill is active
Tank Operator that uses melee Arts attacks during skill activations
Duelist Defender
Duelist
Only restores SP when blocking enemies
Very strong single-block tank Operator which can only generate SP when blocking enemies
Fortress Defender
Fortress
When not blocking enemies, prioritizes dealing ranged AoE Physical damage
Strong tank Operator using a ranged attack dealing area-of-effect/splash damage with large minimum range when not blocking enemies
Sentinel Protector Defender
Sentinel Protector
Blocks 3 enemies and attacks from long range.
Tank Operator with a ranged attack

Interactions[]

Operator Skill/talent Interaction
Military Fortress Increases the ATK of Defenders while Horn is deployed.
  • E1: 10%
  • E2: 20%
  • P5: +3%
Special Operation Strategy Increases the DEF of Defenders by 6% (+2% P5) while Hoshiguma is deployed.
Tectonic Armor Increases the maximum HP of Defenders when Nian is in the squad.
  • E1: 8%
  • E2: 16%
  • P5: +4%

Trivia[]

  • Along with Sniper, Defender is the only class without a male 6★ Operator.
  • While most Defenders except Duelist and Fortress Defenders can only attack enemies on the same tile as them, all 6★ Defenders excluding Saria have a range of the tile ahead of them like that of most melee Operators, regardless of their branch.
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