Melira, Sylvok Outcast, Woodfall Primus, and Shilgengar, Sire of Famine

Prerequisites

• Melira, Sylvok Outcast on the battlefield
• Woodfall Primus on the battlefield
• Shilgengar, Sire of Famine on the battlefield

Steps

1. Activate Shilgengar by sacrificing Woodfall Primus
2. When Woodfall Primus dies, its persist ability triggers, returning it from your graveyard to the battlefield without a -1/-1 counter on it due to Melira
3. When Woodfall Primus enters, it triggers, destroying a noncreature permanent
4. Resolve the Shilgengar ability
5. Repeat

Results

• Destroy any number of noncreature permanents
• Lock
• Infinite Blood tokens
• Infinite ETB
• Infinite LTB
• Infinite death triggers
• Infinite sacrifice triggers