Curator Beastie, Lesser Masticore, and Phyrexian Altar

Prerequisites

• Curator Beastie on the battlefield
• Lesser Masticore on the battlefield
• Phyrexian Altar on the battlefield
• Lesser Masticore does not have a -1/-1 counter on it

Steps

1. Activate Phyrexian Altar by sacrificing Lesser Masticore, adding one mana of any color
2. When Lesser Masticore dies, its persist ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it due to Curator Beastie
3. Repeat

Results

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