Mortal Shell II — Triarch Repeater Location (Blackwell Cavern)

Published 2026-09-173 min read

The Triarch Repeater is Mortal Shell II's rapid-fire sidearm: three-shot bursts, fast handling and strong posture damage, all fueled by Resolve instead of ammo. It sits mid-way through the Blackwell Cavern — full route inside.

The Triarch Repeater is the sidearm for players who hate reloading: a rapid three-shot burst crossbow that needs no ammunition at all — every shot is paid in Resolve. Fast handling, quick bursts and excellent posture damage make it the most spammable ranged tool in Mortal Shell II.

The Triarch Repeater sidearm in Mortal Shell II
Three-shot bursts, zero ammo, all Resolve.

Where to find it — no boss required

The best part of the Triarch Repeater is the price of admission: you do not fight your way to the end of anything.

  1. Fast travel to the Castigator's Keep Beacon.
  2. Follow the road down — or simply drop off the back of the Beacon platform — to reach the lower area.
  3. Head north along the path until you reach the cliff-corner entrance of the Blackwell Cavern dungeon.
  4. Push into the dungeon — the Repeater is sitting on the ground in the first lit area, roughly mid-way through. Pick it up and walk out.

What it plays like

  • Burst pressure on demand. Three quick bolts per trigger pull shred posture and interrupt wind-ups; a burst at the right moment cancels more attacks than any other sidearm.
  • Ammo-free by design. Because it burns Resolve instead of bolts, aggressive play that keeps landing melee swings literally refills its magazine.
  • Sustained ranged DPS. Against staggered or fleeing enemies, back-to-back bursts finish fights that other sidearms would need reloading for.

If the Forgotten Crossbow is the sniper rifle, the Triarch Repeater is the SMG — and the two come from conveniently adjacent regions.

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