Is my tezzeret type 2 magic deck any good?

I would try putting in 3-4 thrummingbirds in place of gitaxtian probe, dispatch, 1 preordain, and 1 everflowing clalice. Change the 2 day of judgments for condemn but keep them in your sideboard. If thrummingbird works your going to power up everything with proliferate like crazy. Take out Venser and replace him with Ajani. I know this sounds crazy but Ajani's -1 ability will make thrummingbird bigger then when their attack hits they get bigger too. I love it with those changes.