Fathom Mage, Sheoldred, the Apocalypse, and Archangel of Thune

Prerequisites

• Fathom Mage on the battlefield
• Sheoldred, the Apocalypse on the battlefield
• Archangel of Thune on the battlefield

Steps

1. Gain life
2. Archangel of Thune triggers, putting a +1/+1 counter on each creature you control
3. Fathom Mage triggers, causing you to draw a card
4. Sheoldred triggers, causing you to gain 2 life
5. Repeat from step 2

Results

• Infinite card draw
• Near-infinite lifegain
• Near-infinite lifegain triggers
• Infinite draw triggers
• Near-infinite +1/+1 counters on a creature