Nissa, Nature's Might

+1: Create a 1/1 green Nature Construct token.
-2: Until end of turn, whenever you tap a forest for mana, you gain 1 life. At the end of the turn, you gain 3 life.
-6: You get an emblem: At the beginning of your end step, if you haven't played a land card this turn, put a +1/+1 counter on each token you control.