Walking Ballista and Aveline de Grandpré Infinite Damage

Step 1: Have Walking Ballista with at least 2 +1/+1 counters on the battlefield.

Step 2: Use Aveline de Grandpré's ability to either untap Walking Ballista or interact with counters.

Step 3: Use Vraska, Swarm Eminence's ability to create tokens or proliferate counters on Walking Ballista.

Step 4: Use Animation Module to add counters to Walking Ballista whenever a counter is placed on it.

Step 5: Remove counters from Walking Ballista to deal damage to any target.

Step 6: Repeat steps 3-5 to generate infinite damage.