This deck is awesome.
My personal additions were: +1 Thorn Carapace, +1 Aflatoxin, +1 Miracle.
The result.
I didn't even need the miracle.
To be honest, against a level 3 I wouldn't expect you to. You're fully upped, and this is control deck, so you're not supposed to be in that much danger of damage- if you lose health you can gain it back with black holes.
I agree with you on the damage output point. I've dealt with that in the one I put up, but everyone should see what works best for them.