Walking Ballista + Unspeakable Symbol + Dictate of the Twin Gods + Twinflame Tyrant

Walking Ballista

Unspeakable Symbol

Dictate of the Twin Gods

Twinflame Tyrant

How it works

1. Give Walking Ballista lifelink, if needed.
2. If Walking Ballista has less than two +1/+1 counters on it, activate Unspeakable Symbol by paying 3 life, putting a +1/+1 counter on Walking Ballista.
3. Activate Walking Ballista's second ability by removing a +1/+1 counter from it, dealing 4 damage to an opponent or a permanent an opponent controls, and causing you to gain 4 life.
4. Repeat from step 2.

This clever loop turns Walking Ballista into a self-sustaining engine by exploiting the compounding damage-doubling effects of Dictate of the Twin Gods and Twinflame Tyrant. Ordinarily, Unspeakable Symbol would drain your life total as you pump counters onto the Ballista, but because those damage amplifiers double the 1 damage ping up to 4, the resulting lifegain more than pays the life cost. As long as you can grant Walking Ballista lifelink to bridge the gap, removing and replacing its counters becomes a net-positive cycle that buries your opponents in infinite damage and life.