Okay, i like where the deck is going, but I have some recommendations that aren't lands.
preordain isn't bad, but
consider might be a better choice if you are looking to get instant and sorceries in your graveyard.
opt is also an option as they are instants.
Crackling Drake and
Enigma Drake might be a good creature put in for evasion. they don't have haste, but if your opponent doesn't have lands it wont matter.
Desperate Ritual might be a
consider for fast land destruction.