Theorylytics

Plunder

Used by Hydroid

Ability3
Energy25

Plunder

Plunder Armor from nearby enemies and increase Corrosive Damage on your Abilities and weapons. Enemies affected by Corrosive Status offer a greater increase.

Introduced in Update 13.0 (2014-04-09)

Ability stats

Strength
  • See in-game / wiki ability card for rank values
Duration
  • See in-game / wiki ability card for rank values
Range
  • See in-game / wiki ability card for rank values
Misc
  • Plunder Armor from nearby enemies and increase Corrosive Damage on your Abilities and weapons.

Info

  • Plunder is Hydroid’s ability 3.
  • Plunder Armor from nearby enemies and increase Corrosive Damage on your Abilities and weapons.
  • Use it with the rest of the kit — especially Tempest Barrage, Tidal Surge — instead of casting it in isolation.
  • Ability Strength, Duration, Range, and Efficiency each matter differently; check Mod Scaling below before dumping all four.

Augment

9

Rousing Plunder

Plunder Augment: Plunder gains 50% max Corrosive Damage and Armor, and heals allies within Affinity range for 50 Health.

Hydroid
Open augment →
Rousing Plunder

Plunder Augment: Plunder gains 50% max Corrosive Damage and Armor, and heals allies within Affinity range for 50 Health.

Max rank drain ~9; see rank table on the augment page.

Open full augment page →

Cast Changes

  1. Modifies Plunder with: Plunder Augment: Plunder gains 50% max Corrosive Damage and Armor, and heals allies within Affinity range for 50 Health.
  2. Rank up the augment to unlock the full effect values.
  3. Costs a mod slot (and capacity) — only equip it when the change matters for your loop.

Worth the Slot?

  1. Worth it when the augment’s change is central to how you play Hydroid.
  2. Skip it if the base Plunder already does what you need and you’d rather keep the slot for survivability or strength.

Tips & Tricks

  • Read the battlefield first — cast Plunder when it actually solves the room, not on cooldown habit.
  • Pair Plunder with movement and energy economy so you’re not stranded after a big spend.
  • On Steel Path, confirm whether Plunder still carries without strip, Viral, or a squad buff.
  • If you never press 3, it’s the first Helminth candidate on Hydroid.

Ability dossier · Plunder

Verified 2026-07-22

Synergies

  • PlunderTempest Barrage

    Use Plunder to set up Tempest Barrage, or follow Tempest Barrage with Plunder while enemies are vulnerable.

  • PlunderTidal Surge

    Use Plunder to set up Tidal Surge, or follow Tidal Surge with Plunder while enemies are vulnerable.

  • PlunderTentacle Swarm

    Use Plunder to set up Tentacle Swarm, or follow Tentacle Swarm with Plunder while enemies are vulnerable.

Mod Scaling

Strength

Improves Plunder’s damage or effect potency where Strength is listed on the ability.

Duration

Duration is low priority on Plunder unless an augment or lingering effect needs it.

Range

Increases Plunder’s reach, radius, or targeting distance.

Efficiency

Plunder costs energy each cast — Efficiency (or strong regen) keeps the loop comfortable on long missions.

Priority

Stack the stats that actually move this ability’s needle, then Efficiency for uptime.

Mission Use Cases

MissionHow to Use It
Steel Path Survival / Defense / DisruptionTest whether Plunder still clears or enables clear when enemies are dense and overlevelled.
Mobile Defense / ExcavationUse Plunder to control or delete the swarm on the objective, then reposition.
Exterminate / Capture Speed RunsCast Plunder only when it saves time — skip it on empty tiles.
Spy / Rescue / Quiet RoutesIf Plunder is loud or forces combat, save it for after the vault; if it’s stealth-friendly, use it to stay safe.

Comparisons

  • VS

    Vs similar tools on other frames — Plunder is tuned for Hydroid’s loop — don’t judge it as a standalone subsume without the rest of the kit.

Other Hydroid abilities