Mephidross Vampire + Walking Ballista

B identity

Commander legal

The 2 combo pieces

• Mephidross Vampire
• Walking Ballista

What must be in place

Walking Ballista has at least two +1/+1 counters on it.

How to execute it

1. Activate Walking Ballista's second ability by removing a +1/+1 counter from it, dealing 1 damage to any creature an opponent controls.
2. Walking Ballista triggers, putting a +1/+1 counter on itself.
3. Repeat as desired.
4. You may also repeat this loop whenever a creature enters the battlefield under an opponent's control.

What the combo produces

• Destroy any number of creatures opponents control
• Destroy each creature that enters the battlefield under an opponent's control
• Infinite damage to creatures
• Lock