Crimsonwood 2

Fighting multiple bosses at once would benefit heroes a ton, right? It's essentially multiplying their damage by up to x3. They just need to rush them into a corner.

Assuming none of the bosses are flying ;D.

Honestly, I could see them having the Magician boss woman flying around the map casting spells and the others teleporting around or what not, which would then give ArchMages and Bishops and edge (provided the Elements are on their side).