Vona, Butcher of Magan

Oracle Text

Vigilance, lifelink

T, Pay 7 life: Destroy target nonland permanent. Activate this ability only during your turn.

Card Rulings

9/29/2017 Vona’s last ability can be activated during any step or phase of your turn, including the combat phase. It’s possible to attack with Vona and then activate its ability before blockers are declared. Doing so won’t remove Vona from combat.