Luck, Venom of Vipers

+2: Draw two cards and at the end of your next turn, draw that many cards as you drew that turn
+1: As an additional cost to cast this spell, pay one mana. Luck, Venom of Vipers deals x damage to any target, where x is any amount of mana.
-6: Take all lands out of your library and play them, and shuffle.Then exile the top seven cards of your library. You may play them on any turn.