Love the mechanic - the paddle could do with being a touch more responsive (maybe have different levels where it changes shape?) and I'm always a sucker for upgrades, but yeah, love the core principal :)
The easy part of the baron, is just wait till he loses his Focus, then make him recieve X% more damage from all sources. Works like a charm, and can knock 3-4k off every turn for 3 turns.
This game is great! And, fully skilled Ice Water owns. Just burn until he has no mana, and in the meantime counter attacks with attacks. You can adapt the trategy to encompass specials, if you like, but that's the general idea. 4/5, simply bacause the grammar and spelling weren't that good.
I agree with futurenerd. The concept was stretched just a little too far- when you reach level four and want the game to end, that's not a good sign. 2/5.