Mewtwo, Psychic Master

+3: Take the top 7 cards from the top of your deck. Find a land card you find there and add it to your hand. Shuffle the remaining cards back.
-1: Deal 2 damage to up to 5 different targets, ignoring all effects on each.
-7: Search your deck for a card with the subtype Mythical Pokemon, and place it onto the battlefield. Deal 1 damage times the total amount of lands.