Halo Fountain, Aphetto Alchemist, and Sage of the Maze

Prerequisites

• Halo Fountain on the battlefield
• Aphetto Alchemist on the battlefield
• Sage of the Maze on the battlefield

Steps

1. Activate Sage of the Maze by tapping it, adding Activate Aphetto Alchemist by tapping it, targeting Halo Fountain
2. Holding priority, activate Halo Fountain by paying , tapping it, and untapping Aphetto Alchemist and Sage of the Maze, causing you to draw a card
3. Resolve the Aphetto Alchemist ability, untapping Halo Fountain
4. Repeat

Results

• Infinite card draw
• Infinite draw triggers