Halo Fountain + Vizier of Tumbling Sands + Phyrexian Altar

Prerequisites

• Vizier of Tumbling Sands does not have summoning sickness.

Steps

1. 1Activate Vizier of Tumbling Sands by tapping it, targeting Halo Fountain.
2. 2Holding priority, activate Halo Fountain's first ability by paying , tapping it and untapping Vizier of Tumbling Sands, creating a 1/1 Citizen creature token.
3. 3Resolve the Vizier of Tumbling Sands ability, untapping Halo Fountain.
4. 4Activate Phyrexian Altar by sacrificing the Citizen token, adding .
5. 5Repeat.

Effects

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