Relic set

Prisoner in Deep Confinement

Cavern relic★★★★★Release version 1.5

At a glance

Prisoner in Deep Confinement is a 5-star Cavern Relic set released in Version 1.5. It contains 4 pieces with set bonuses activated at 2 and 4 pieces.

Source starrail.js@1.9.10, build OSPRODWin4.4.0_D16085003_A16085003_L16155460, commit b11066be; data generated on August 25, 2026.

2 pieces: Increases ATK by 12%.
4 pieces: For every DoT the enemy target is afflicted with, the wearer will ignore 6% of its DEF when dealing DMG to it. This effect is valid for a max of 3 DoTs.

Head

A muzzle designed to tightly encage the captive's beastly visage, guarding against the feral fangs that yearn to inflict harm.

Hands

Heavy shackles that tightly bind the evildoer's hands with steel needles pinning into the wrists, preventing the vicious claws from doing harm again.

Body

A prisoner's garment that restrains dangerous criminals. Its reversed-joint design confines the prisoner's body.

Feet

Metal shackles that bind the feet of the beasts, imprisoning evils and preventing them from escaping and wrecking havoc.

Cavern relic

Release version 4.0