Encantamento
Quando Tutela de Teferi entrar no campo de batalha, compre um card e depois descarte um card.
Toda vez que você compra um card, o oponente alvo tritura dois cards.
You draw a card and discard a card all while the first ability is resolving. Nothing can happen between the two, and no player may choose to take actions. This means that the second ability is put onto the stack after you've finished resolving the first ability.