Infinite damageInfinite lifegain triggersInfinite lifegainInfinite +1/+1 counters on creatures you control
How it works
Cast Insult by paying 2, doubling all damage you deal this turn.
Give Walking Ballista lifelink, if needed.
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.
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.
Repeat from step 3.
This loop is a masterclass in compounding damage multipliers, turning a simple ping into a lethal engine with the help of Insult // Injury and Twinflame Tyrant. While Unspeakable Symbol feeds life directly into Walking Ballista to fuel its counters, the stacking replacement effects ensure that every single counter removed deals double damage *twice*—turning a single point of removal into overwhelming force. As Walking Ballista fires off lethal damage, you simultaneously gain back more life than you spent on the Symbol, creating a self-sustaining loop of endless damage and lifegain.