Death's Gambit - Thalamus (No Damage)

Not all that hard of a boss since it's just survive but I will say that the design is really nice for this one. It really does a Lovecraftian horror well.

The Crow Deaths Gambit Wiki

Death's Gambit: afterlife - Heroic Avatar of Thalamus {with Lenny's Broken Longsword}

Death's Gambit: Afterlife heroic Thalamus NG+9

Die, die, die: Boss battle design in Death's Gambit

Official Death's Gambit Subreddit

Y'lnoth: The Corpse City - Death's Gambit: Afterlife Walkthrough - Neoseeker

Y'lnoth: The Corpse City - Death's Gambit: Afterlife Walkthrough - Neoseeker

Death's Gambit: Afterlife update out now on Switch, patch notes

Y'lnoth: The Corpse City - Death's Gambit: Afterlife Walkthrough - Neoseeker