Theorylytics

Lethal Progeny

Used by Caliban

Ability3
Energy25

Lethal Progeny

Cycle through Sentient unit types, then summon them to Caliban's side. Conculysts focus on raw melee damage. Ortholysts specialize in ranged attacks and inflict Tau Status Effect. Summulysts summon their own Choralysts and provide shield protection for the squad.

Introduced in Update 31.0 (2021-12-15)

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
  • Cycle through Sentient unit types, then summon them to Caliban's side.

Info

  • Lethal Progeny is Caliban’s ability 3.
  • Cycle through Sentient unit types, then summon them to Caliban's side.
  • Use it with the rest of the kit — especially Razor Gyre, Sentient Wrath — instead of casting it in isolation.
  • Ability Strength, Duration, Range, and Efficiency each matter differently; check Mod Scaling below before dumping all four.

Tips & Tricks

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

Ability dossier · Lethal Progeny

Verified 2026-07-22

Synergies

  • Lethal ProgenyRazor Gyre

    Use Lethal Progeny to set up Razor Gyre, or follow Razor Gyre with Lethal Progeny while enemies are vulnerable.

  • Lethal ProgenySentient Wrath

    Use Lethal Progeny to set up Sentient Wrath, or follow Sentient Wrath with Lethal Progeny while enemies are vulnerable.

  • Lethal ProgenyFusion Strike

    Use Lethal Progeny to set up Fusion Strike, or follow Fusion Strike with Lethal Progeny while enemies are vulnerable.

Mod Scaling

Strength

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

Duration

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

Range

Increases Lethal Progeny’s reach, radius, or targeting distance.

Efficiency

Lethal Progeny 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 Lethal Progeny still clears or enables clear when enemies are dense and overlevelled.
Mobile Defense / ExcavationUse Lethal Progeny to control or delete the swarm on the objective, then reposition.
Exterminate / Capture Speed RunsCast Lethal Progeny only when it saves time — skip it on empty tiles.
Spy / Rescue / Quiet RoutesIf Lethal Progeny 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 — Lethal Progeny is tuned for Caliban’s loop — don’t judge it as a standalone subsume without the rest of the kit.

Other Caliban abilities