Marina Vendrell's Grimoire, and Sheoldred, the Apocalypse

Prerequisites

• Marina Vendrell's Grimoire in hand
• Sheoldred, the Apocalypse on the battlefield
• available

Steps

1. Cast Marina Vendrell's Grimoire by paying
2. When Marina Vendrell's Grimoire enters the battlefield, its first ability triggers, causing you to draw five cards
3. Sheoldred's first ability triggers five times
4. Resolve the first Sheoldred trigger, causing you to gain 2 life
5. Marina Vendrell's Grimoire's second ability triggers, causing you to draw two cards
6. Sheoldred's first ability triggers twice
7. Repeat from step 4

Results

• Near-infinite lifegain
• Near-infinite lifegain triggers
• Infinite card draw
• Infinite draw triggers