I'm actually a little worried about
flesh carver's power level. Can become a removal check on turn 4 if you curve into it.
I agree that I don't think blue deserves
reef worm, it should be a black or green creature that can't block or something, so you have to sac it or make it fight to grow it. As-is it's just a weird, green-feeling
standstill
I actually skipped over
creeperhulk, and I don't think it's bad but it might be too good.
Wolfir Silverheart syndrome- just ends the game if unanswered.
Why
warmonger hellkite?
Moonveil Dragon +
Fumiko the lowblood? I actually tested Fumiko and it was a pretty interesting finisher in a creature-heavy environment. They have to attack with their 1/3s and such, letting you in for far more.
I'm also weary of
comeuppance- no planning or setup involved, you just (likely) plague wind your opponent. At least things like
angel of the dire hour cost a bunch to rail your opponent.