Voracious Tome-Skimmer

Flying

Whenever you cast a spell during an opponent's turn, surveil 2. (Look at the top two cards of your library. You may put any number of them into your graveyard and the rest on top of your library in any order.)

Whenever you cast a spell during an opponent's turn, you may have each opponent lose 1 life.

Whenever you cast your first spell during each opponent's turn, draw a card.

Flying

Whenever you cast a spell during an opponent's turn, you may have target creature get -1/-1 until end of turn.

Whenever you cast an instant spell, you may pay . If you do, draw a card.

Flying, lifelink

Whenever you cast a spell during an opponent's turn, put a -1/-1 counter on up to one target creature.