Feat: Cranial Detonation

Frequency once per round

Trigger You successfully reduce one or more non-mindless enemies to 0 Hit Points with a spell.

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As your overwhelming psyche fells a creature, you use its flickering consciousness to detonate psychic energy from the creature's head. Each enemy you reduced to 0 Hit Points dies and its head explodes. Each exploding head generates a shockwave in a @Template[emanation|distance:15] around that enemy. Each creature in any of the emanations takes 10d6 bludgeoning damage with a Basic Reflex. If this damage reduces an enemy to 0 Hit Points, its head also explodes, potentially damaging more creatures and potentially causing more detonations. A given creature can take damage only once from a single use of Cranial Detonation.