Volcano's Heart

This spell is a part of the Kindling spell chain and is found in the Kindling rune stone.

With this manipulation you summon forth the dark source of fire, the Volcano, to destroy your enemy. The Volcano forms around the target, entrapping the target deep within its burning hot core. For the duration of the spell the target is locked within the core, unable to act, while receiving 7d10 damage per round. On the target’s turn in the final round of the spell’s duration, the core explodes and the Volcano erupts the target out dealing one last 7d12 damage before dropping the target to the ground in whatever state the target is in. If the target is still alive the target is stunned for 1d3 rounds.