Greven, Predator Captain + Unspeakable Symbol

Greven, Predator Captain

Unspeakable Symbol

How it works

1. Activate Unspeakable Symbol by paying 3 life.
2. Repeat step 1 until Greven has power 21 or greater due to its first ability.
3. Deal combat damage to an opponent using Greven. The opponent loses the game due to being dealt 21 or more combat damage from your commander.