[@ERode]

I guess you can keep the first as is, considering everything.

In the case of the second, just increase some of the damage. How about 200% x Level? I'm sure that most people will reckon that they'll die when hit by that, anyway.

For the third, I guess you can keep it as is, then. A cooldown of at least 05 Rounds would be the least to expect of such an ability. But, for me, something like 10 would be more fitting, given that the debuff from it lasts 05 Rounds.