Nayoma, Crafty Huntress

Flash, deathtouch
Whenever you cast your first spell during an
opponent's turn, choose target creature that
player controls. Until end of turn, that creature
gets -4/-0 and attacks you or a planeswalker you control this turn if able. When that creature dies
this turn, you gain 2 life. Untap Nayoma, Crafty Huntress.