Melira, Sylvok Outcast, Lesser Masticore, and Phyrexian Altar

Prerequisites

• Melira, Sylvok Outcast on the battlefield
• Lesser Masticore on the battlefield
• Phyrexian Altar on the battlefield

Steps

1. Activate Phyrexian Altar by sacrificing Lesser Masticore, adding one mana of any color
2. Lesser Masticore dies, triggering its persist ability, returning it from your graveyard to the battlefield without a -1/-1 counter on it due to Melira
3. Repeat

Results

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