Agatha's Soul Cauldron, Sphinx's Disciple, and Aphetto Alchemist

Prerequisites

• Agatha's Soul Cauldron on the battlefield
• Sphinx's Disciple on the battlefield
• Aphetto Alchemist in exile

Steps

1. Activate Sphinx's Disciple using Aphetto Alchemist's ability by tapping it, untapping Sphinx's Disciple Sphinx's Disciple triggers, drawing a card
2. Repeat

Results

• Infinite card draw
• Infinite draw triggers