Colfenor, the Last Yew, Ashnod's Altar, Phyrexian Marauder, and Endless One

Prerequisites

• Colfenor, the Last Yew on the battlefield
• Ashnod's Altar on the battlefield
• Phyrexian Marauder on the battlefield
• Endless One in the graveyard
• At least one +1/+1 counter on Phyrexian Marauder

Steps

1. Sacrifice Phyrexian Marauder to Ashnod's Altar for
2. Colfenor triggers, returning Endless One from your graveyard to your hand
3. Cast Endless One for
4. Sacrifice Endless One to Ashnod's Altar for
5. Colfenor triggers, returning Phyrexian Marauder from your graveyard to your hand
6. Cast Phyrexian Marauder for
7. Repeat

Results

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