Melira, Sylvok Outcast, Ashnod's Altar, and Lesser Masticore

Prerequisites

• Melira, Sylvok Outcast on the battlefield
• Ashnod's Altar on the battlefield
• Lesser Masticore on the battlefield

Steps

1. Activate Ashnod's Altar by sacrificing Lesser Masticore
2. When Lesser Masticore dies, its persist ability triggers, returning it from your graveyard to the battlefield without a -1/-1 counter on it due to Melira
3. Repeat

Results

• Infinite ETB
• Infinite LTB
• Infinite colorless mana
• Infinite death triggers
• Infinite sacrifice triggers