Deadbridge Chant, Tormod's Cryptkeeper, and Time Walk

Prerequisites

• Deadbridge Chant on the battlefield
• Tormod's Cryptkeeper on the battlefield
• Time Walk in hand
• Tormod's Cryptkeeper does not have summoning sickness
• each turn available

Steps

1. Activate Tormod's Cryptkeeper by tapping and sacrificing it, exiling your graveyard
2. Cast Time Walk by paying , causing you to take an extra turn after this one
3. Move to your next turn
4. At the beginning of your upkeep, Deadbridge Chant triggers, returning Time Walk to your hand from your graveyard
5. Repeat from step 2
6. NOTE: This combo can fail if other cards enter your graveyard after step 1

Results

• Infinite turns