Initial Card StateHeliod, Sun-Crowned on the battlefield. Walking Ballista on the battlefield. Notable PrerequisitesWalking Ballista has at least two +1/+1 counters on it.
StepsActivate Heliod by paying 
, giving Walking Ballista lifelink until end of turn.
Activate Walking Ballista's second ability by removing a +1/+1 counter, dealing 1 damage to any target.
Walking Ballista's lifelink triggers, causing you to gain 1 life.
Heliod triggers, putting a +1/+! counter on Walking Ballista.
Repeat from step 2.
ResultsInfinite damageInfinite lifegainInfinite lifegain triggers