Infinite -1/-1 counters, Infinite +1/+1 counters on a creature, Infinite death triggers, Infinite ETB, Infinite LTB, Infinite sacrifice triggers
Activate Carrion Feeder by sacrificing Soulstinger.
When Soulstinger dies, its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
When Soulstinger enters the battlefield, it triggers, putting a -1/-1 counter on it.
Resolve the Carrion Feeder ability
Repeat.
Component Cards
How It Works
Activate Carrion Feeder by sacrificing Soulstinger.
When Soulstinger dies, its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
When Soulstinger enters the battlefield, it triggers, putting a -1/-1 counter on it.
Resolve the Carrion Feeder ability
Repeat.