Nahiri, Mourning Nomad

+1: Put a +1/+1 counter on target creature and it gains Vigilance and First Strike until end of turn.
-2: Draw a card, then discard a card. Exile up to one target permanent that shares a card type with the discarded card.
-7: You get an emblem with "At the beginning of your upkeep, for each creature you control, gain 1 life and put a +1/+1 counter on that creature."