Duel Decks: Nissa vs. Ob Nixilis

Casting Cost:

+1: Put a 0/1 green Plant creature token onto the battlefield.

-2: Put a +1/+1 counter on each creature you control.

-7: You gain X life and draw X cards, where X is the number of lands you control.

Casting Cost: 

+1: You draw a card and you lose 1 life.

-3: Destroy target creature.

-8: Target opponent gets an emblem with "Whenever a player draws a card, you lose 2 life."