Fire, as a tactical attack
So the character can catch on fire simply by walking into a lit campfire. What about igniting wooden structures and farms using the torch? This was indeed a method of attack in Medieval times. This should require the addition of constructable wells as a defense to minimize damage.
Destruction of structures could animate similar the collapse animation already present. It would also need the animation of fire on the structure. Burning crops would also be destroyed and could whither to a dead state which would need plowing to replant. Constructable buckets would be needed for the well to douse structures and crops aflame. Stone structures should not ignite.