TentacleSwarmU15 PirateKraken
Tentacle Swarm
Tap to spawn watery tentacles from all nearby surfaces to wreak havoc. Charge to increase the number of tentacles and spawn area. Use while in Undertow to have the tentacles emerge from the pool.
Strength:75 / 150 / 225 / 300 (contact damage)
50 / 100 / 150 / 200 (capture damage per second)
Duration:10 / 13 / 18 / 20 s
Range:3 / 3 / 5 / 5 m (base radius)
9 / 9 / 15 / 15 m (charged radius)
Misc:∞ (cast range)
4 / 6 / 8 / 10 (tentacles)
8 / 12 / 16 / 20 (charged tentacles)

  • Hydroid summons a creature from the deep, causing 4 / 6 / 8 / 10 tentacles to emerge from all surfaces within a marked location 3 / 3 / 5 / 5 meters in radius, cast over unrestricted range. Tentacles prioritize spawning beneath enemies inside the radius, with each tentacle capturing their initial targets or throwing them upward, dealing a maximum of 75 / 150 / 225 / 300 Magnetic b Magnetic damage upon emerging, on first contact with enemies, and when submerging as the ability expires after 10 / 13 / 18 / 20 seconds; captured enemies are incapacitated in a ragdoll state and stay attached to the flailing tentacles, while dealt 50 / 100 / 150 / 200 Finisher damage per second.
    • Tentacle Magnetic damage and Finisher damage per second are affected by Ability Strength, while number of active tentacles is not.
      • Magnetic damage calculation when accounting for Ability Strength is squared (e.g., with a maxed Intensify, the tentacles will deal a maximum of 300 × 1.32 = 507 Magnetic b Magnetic damage at rank 3).
    • Spawn radius is affected by Ability Range.
    • Duration is affected by Ability Duration.
    • Casting speed and charging speed are affected by Natural Talent and Speed Drift.
    • Tentacles detect and capture new enemy targets when they come into range.
    • Tentacles can capture multiple enemies at once.
    • Tentacles with captured enemies will flail their victims around slowly, allowing players to take aim and kill their targets.
  • Tapping the button (default 4 ) casts the ability immediately. Holding the button for up to 2.5 seconds charges Tentacle Swarm, increasing the number of tentacles spawned up to 8 / 12 / 16 / 20 and spawn radius up to 300%, in exchange for up to double energy cost.
    • Tentacle Swarm's spawn area will be highlighted by Hydroid's energy color during the casting and charging animations.
    • Spawn area indicator visibly grows in size as Tentacle Swarm is charged.
    • While charging, an audible whale-like call from the Kraken plays.
  • Can be cast while in Undertow liquid form to center Tentacle Swarm on the pool.
    • Quick cast causes all tentacles to spawn inside Undertow's radius, while charged cast extends the spawn radius outside of Undertow.
    • Tentacle Magnetic b Magnetic damage and Finisher damage per second deal 200% damage when cast from Undertow, including tentacles that spawn outside Undertow.
  • Casting Tentacle Swarm is a two-handed action that stops Hydroid's movement and other actions. Charging Tentacle Swarm is a two-handed upper body animation that allows player movement.
  • Can be recast while active; however, only one instance of Tentacle Swarm can be active at a time. Recasting will replace the previous instance.
  • Hydroid briefly summons the Kraken at the center of the spawn area as a visual effect. The Kraken emerges from a pool of water, then submerges slowly and disappears. Kraken is affected by Hydroid's chosen Warframe appearance and energy colors.
  • Tentacles appear as translucent water tendrils emerging from a small puddle of water. Tentacles emit splashes of water periodically, as well as a steam particle effect at their base which is affected by Hydroid's chosen Warframe energy color.

Main article: Pilfering Swarm

Pilfering Swarm is a Hydroid Warframe Augment Mod that grants Tentacle Swarm a chance to yield additional loot from enemies killed while they're ensnared by the tentacles.

Rank Effect Cost
0 25% 6
1 50% 7
2 75% 8
3 100% 9

Tips & Tricks


Maximization is a form of specialization: mods may be blended to result in values that vary between the top-end limits listed here. Click any maximized link to learn how to build it.

  • Maximized Ability Duration increases duration to 61.2 seconds.
    • range to 5.1 - 15.3 meters.
  • Maximized Ability Efficiency reduces cost to 12.5 - 25 energy.
    • Reduces duration to 8 seconds.
  • Maximized Ability Range increases range to 42 - 126 meters.
    • Reduces maximum tentacle damage to 48 and capture damage to 80 per second.
  • Maximized Ability Strength increases maximum tentacle damage to 4173.87 and capture damage to 746 per second.
    • Without Energy Conversion, increases maximum tentacle damage to 3129.87 and capture damage to 646 per second.
    • Increases cost to 77.5 - 155 energy.
    • Reduces duration to 14.5 seconds.
NOTE: The first value refers to the ability uncharged, the second refers to the ability fully charged.

  • Animation is made and energy is wasted but no tentacles spawn

See AlsoEdit