100%(ish) Win rate on turn 1DISCLAIMER: There is probably some rule that negates this deck. I don't know it, but if you do, please let me know.
This deck is meant for the Freeform format. It's the only format that allows ante cards. Anyway, on to how the deck works.
All of the Rebirths get removed before the game starts (because no one's going to want to play for ante), leaving you with only the other seven cards. You draw all of them in your opening hand. The
Leyline of Anticipation comes into play turn 0. Use three of the Lotus Petals to play
Laboratory Maniac. Use the remaining
Lotus Petal for the
Ajani's Presence, so your opponent can't kill the
Laboratory Maniac before it's ability gets to activate. At the beginning of your turn, because you have no cards in your library,
Laboratory Maniac's ability triggers, winning you the game.
The only way this deck will lose is if someone know's what you're doing and says they want to play for ante.