Here is a tip to heal your champion faster : Make lots of zafreeti healers and attack a weak yard.The zafreeti will heal your champion while he wrecks the yard , and because it is a weak yard you will heal more of his health than he loses.
I love this game.It is EXTREMELY underrated.This game deserves so much more.It doesn't need more maps,it needs a map editor.Also im fine with the amount of units.This game is very fun.A small improvement would be more performant game servers