Shepherd of the Cosmos + Angelic Renewal + Phyrexian Altar

Prerequisites

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Steps

1. 1Activate Phyrexian Altar by sacrificing Shepherd of the Cosmos, adding one mana of any color.
2. 2Shepherd of the Cosmos dies, triggering Angelic Renewal, causing you to sacrifice Angelic Renewal and return Shepherd of the Cosmos from your graveyard to the battlefield.
3. 3Shepherd of the Cosmos enters the battlefield, returning Angelic Renewal from your graveyard to the battlefield.
4. 4Repeat.

Effects

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