Boss Compendium · Flooded Caverns · Obsidian Testament

Selwyn Brineveil

the Undertow Canon

CR 14Wizard / Cleric / Mystic Theurgeresref fc_selwynsingle Caller spawn

D&D and PRC profile

Build: Wizard / Cleric / Mystic Theurge. This UTC is cloned from an existing PRC shell, preserving real class, feat, skill, and spellbook records. It is flagged BOSS 1 · CLEAR 1 · LOOPS 2 · TYPE 26 and is created only through the normal one-blueprint Caller route.

Combat sequence

I · Undertow Canon
A tidal warning becomes cold damage and knockdown after two rounds.

II · Telegraph
Every signature announces itself with named combat text and a visible VFX before its delayed or rotating result.

III · Epic Undertow
At 40% health, a regenerative tide sustains the canon.

Boss artifact

Brineveil's Undertow Canon — a unique relic in the Obsidian Testament artifact registry, paired to this boss UTC.