Walking Ballista + Unspeakable Symbol + Quest for Pure Flame + Insult // Injury

Walking Ballista

Unspeakable Symbol

Quest for Pure Flame

Insult // Injury

How it works

1. Activate Quest for Pure Flame by removing four quest counters from it and sacrificing it, doubling all damage dealt by sources you control this turn.
2. Cast Insult by paying 2, doubling all damage dealt by sources you control this turn.
3. Give Walking Ballista lifelink, if needed.
4. 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.
5. 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.
6. Repeat from step 4.

This explosive loop relies on compounding damage multipliers to turn Walking Ballista's self-contained counter removal into a lethal, life-gaining engine. By layering the triggered damage-doubling effect of Quest for Pure Flame with the static prevention and doubling rules of Insult, every point of damage dealt by Walking Ballista is amplified fourfold. Since this output outpaces the life cost required to fuel Unspeakable Symbol, you can continuously replenish Walking Ballista's +1/+1 counters and fire off lethal streams of damage until the table is cleared.