Stage Fright- You don't just become untargetable, you also can't act or use your turn. So if you get hit for 30% of your health, you can never attack. It should work like an aversion rune, but it doesn't. This trait is a disadvantage for the character, rather than advantage. If your hit for 30% of you health over and over it completely takes him out of the game.
Tower of Pwnage- Any time you use Puppet Master, and the puppet uses an ability the game crashes. So you can not use this ability at all in the tower.
Chaotic Bounce- In the wording of the ability it says "Applies Frozen to all enemys hit." This is not the case...it's still only a chance. This should be reflected in the tooltip.