College of Demonfire.

Shoots balls of demonfire at things and sets them ablaze.

Hot songs.

Your damage dealing spells will deal 1d6 more fire damage.

Flaming Fury

Fire.

Molten Maniac

There is lava everywhere.

Hellish resistance

I am not hot?!

Burning boom.

100 monsters + Burning Boom = 0 monsters.

The monsters where level 5.