Larian Studios Forums Divinity: Original Sin 2 Divinity - Original Sin 2 - General Is there any reason to level up pyro?

It increases your fire damage by 5%, but wouldn't a point in polymorph with a point in int increase all your int based damage by 5%, including your fire damage? Unless the increased fire damage would also apply to the burn damage they take and increase the amount they take when they walk over your fire surfaces then maybe it's a more fair trade off. Anyone know whether the int increases damage enemies take from surfaces and dots or not? Or even if the points in fire increases those things?