One Thumbs Up!

Evoke {w}{2}, Lifelink

When One Thumbs Up! enters the battlefield you gain 8 life and draw a card.

When One Thumbs Up! enters the battlefield choose odd or even.

At the beginning of your combat phase, reveal the top card of your library. If its mana value matches the choice you picked between odd or even, this becomes a 4/2 human creature.