Strength of Will + Conclave Mentor + Walking Ballista

Strength of Will

Conclave Mentor

Walking Ballista

How it works

1. Cast Strength of Will by paying 1, targeting Walking Ballista.
2. Activate Walking Ballista by removing a +1/+1 counter from it, dealing 1 damage to it.
3. Walking Ballista triggers, putting two +1/+1 counters on it due to Conclave Mentor.
4. Activate Walking Ballista by removing a +1/+1 counter from it, dealing 1 damage to any target.
5. Repeat from step 2.

This clever engine transforms Walking Ballista into a self-sustaining artillery piece by leveraging Strength of Will to turn its self-inflicted damage into growth rather than destruction. Conclave Mentor acts as the crucial amplifier, ensuring that every time Strength of Will's replacement effect triggers from the Ballista shooting itself, you net an extra +1/+1 counter on balance. Because you generate more counters than you spend to ping the creature, you can repeat the loop indefinitely to pile up infinite +1/+1 counters and subsequently fire away for infinite damage at any target.