Agatha's Soul Cauldron + Dr. Beverly Crusher + Walking Ballista

W identity

Commander legal

The 3 combo pieces

• Agatha's Soul Cauldron
• Dr. Beverly Crusher
• Walking Ballista

How to execute it

1. Activate Dr. Beverly Crusher by using Walking Ballista's ability by removing a +1/+1 counter from it, dealing 1 damage to any target and causing you to gain 1 life due to its lifelink.
2. Dr. Beverly Crusher triggers, putting two +1/+1 counters on it.
3. Repeat.

What the combo produces

• Infinite +1/+1 counters on a creature
• Infinite damage
• Infinite lifegain
• Infinite lifegain triggers