Quote from 5oul CrusherCut Silkbind Faerie over Silver Drake, Rakdos Shredfreak over Goblin Deathraiders, Centaur Healer over Sigil Blessing, and Temporal Spring over Gaea's Skyfolk. Keep Deft Duelist.
These are the changes that I would make.
Most likely Fire at Will. It's worse than a lot of red burn, but is far better than Double Cleave.
I dissagre on you with silkbind faerie as it makes racing impossible, is useable in just white or blue and can block OK