As many have said hero is too weak, i would like to correct this statement. I have played for Viegraf who is apparently far stronger than other heroes. I was capable of tanking with hero every level and boss except Colossus. I had some problem with Trial 3 but i did it on 3rd try. Most levels I was using 2 ranged units + the most effective units/titans available. My strategy was simple- using only shield + selfheal while i had mana. My hero was certainly the most effective unit on battlefield many times. This strategy brought me more fun than camping hero on left side of screen.