Necrogenesis + Void Attendant + Ashnod's Altar + Chromatic Orrery

Prerequisites

• An opponent has a creature card in their graveyard.

Steps

1. 1Activate Necrogenesis by paying , exling a creature card from an opponent's graveyard and creating a 1/1 Saproling creature token.
2. 2Activate Ashnod's Altar by sacrificing the Saproling, adding .
3. 3Activate Void Attendant by paying and putting a card from an opponent's exile into their graveyard, creating a 1/1 Eldrazi Scion creature token.
4. 4Activate Ashnod's Altar by sacrificing the Eldrazi Scion, adding .
5. 5Repeat.

Effects

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