First off, love the game, super fun. Second, my favorite team is paladin/shielder. Unkillable! Third, allow you to have 2 of the same class, i would just use paladin/paladin!
What ruins the game is the misschance on defensive games, you can go from having people from one end to the other and then them being 1 move from end. Yet never hit them. Or when there are 2 are the end but they are to spread out to even hit. It makes the game impossible to play.
Its extremely annoying how during the defence quests you can go the entire match without hitting anyone, its really annoying when there is one dude left and he ends up getting to the end.
that king of the underworld boss is seriously impossible to kill, you go in with melee he 1 shots you, you try to shoot and the millions of skeletons get in front of you