Melira, Sylvok Outcast, Yahenni, Undying Partisan, and Persistent Constrictor

Prerequisites

• Melira, Sylvok Outcast on the battlefield
• Yahenni, Undying Partisan on the battlefield
• Persistent Constrictor on the battlefield

Steps

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

Results

• Infinite creature ETB
• Infinite creature LTB
• Infinite death triggers
• Infinite creature sacrifice triggers