Defiant Salvager, and Melira, Sylvok Outcast

Prerequisites

• Defiant Salvager on the battlefield
• Melira, Sylvok Outcast on the battlefield

Steps

1. Activate Defiant Salvager by sacrificing the creature with persist
2. When that creature dies, its persist ability triggers, returning it from your graveyard to the battlefield without a -1/-1 counter on it due to Melira Resolve the Defiant Salvager ability
3. Repeat

Results

• Infinite +1/+1 counters on a creature
• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers