ye, looks good for me. i guess with this deck you get some pwnage on fgs.
a butterfly effect, instead of the maxwell maybe?
and putting more defense (shards, shields) could improve your win rate.
so -pulverizer +butterfly -maxwell +2 feral bonds.
something like that.
With 3 oty's its a great deck for a Butterfly Effect, so my suggestion (keeping 40 cards):
-1 Pulveriser, +1 Butterfly Effect (Boom goes the shields, towers, graveyards)
-1 Maxwell, +1 Permafrost Shld (Freeze those critters til yer Oty can gobble em up!)
-1 Ultharid, +1 Feral Bond (gotta drop 2 for those Feral Bonds...)
-1 Antimatter, +1 Feral Bond (and heres the other)
If you LOVE antimatter, ultharid or maxwell, then drop 1 steal instead.
... and presto!