Here is best *3 heroes:
Red: Rudolph, Squire Wabbit, Namahage, Hawkmoon, Nashgar, Azar
Blue: Gato, Valen, Ulmer, Gunnar
Green: Muggy, Belith, Brienne, Berden, Mnesseus, Hisan
Yellow: Bane, Gan Ju, Melia, Kailani
Purple: Balthazar, Tyrum, Chochin, Gill-Ra