Halo Fountain, Heronblade Elite, and Vizier of Tumbling Sands

Prerequisites

• Halo Fountain on the battlefield
• Heronblade Elite on the battlefield
• Vizier of Tumbling Sands on the battlefield

Steps

1. Activate Heronblade Elite by tapping it, adding at least Activate Vizier of Tumbling Sands by tapping it, targeting Halo Fountain
2. Holding priority, activate Halo Fountain by paying , tapping it, and untapping Vizier of Tumbling Sands and Heronblade Elite, causing you to draw a card
3. Resolve the Vizier of Tumbling Sands ability, untapping Halo Fountain
4. Repeat

Results

• Infinite card draw
• Infinite draw triggers
• Near-infinite creature ETB
• Near-infinite creature tokens