I cut Haunter and Roserade GL (partially replaced by Blaziken FB) from my list
Then, we can play a fetch land like Escape Tunnel, Evolving Wilds, or [[Terramorphic Expanse] to double Tifa's power twice, making it an at least 20-power trampling attacker that should be able to win the game in one attack, as early as Turn 3
Moreover, its flexibility to remove a creature or finish off an opponent makes it a timeless staple
Of course, building your deck with the only creatures being one Street Wraith and two Emrakul, the Aeons Torns is a big cost, and you'll have to play a bunch of ways to tutor up your one Street Wraith for the plan to work, but this plan is actually very similar to that of various Possibility Storm and Polymorph decks, which go to great lengths to ensure their seemingly random payoff is anything but
Going even further, a card like Burning Wish can even grab cards from the main game and put it into the subgame
With delve, you can cut the cost of Treasure Cruise down to just one blue mana, though you need a fair number of cards in the graveyard to do so