Muldrotha, the Gravetide, Mu Yanling, and Vorinclex, Monstrous Raider

Prerequisites

• Muldrotha, the Gravetide on the battlefield
• Mu Yanling in the graveyard
• Vorinclex, Monstrous Raider on the battlefield
• You have not cast a Planeswalker spell using Muldrotha this turn
• each turn available

Steps

1. Cast Mu Yanling from your graveyard by paying
2. Mu Yanling enters the battlefield with ten loyalty counters due to Vorinclex
3. Activate Mu Yanling's third loyalty ability by removing ten loyalty counters from it
4. Mu Yanling dies as a state-based action due to having zero loyalty
5. Resolve the Mu Yanling ability, tapping all creatures your opponent control and causing you to take an extra turn after this one
6. Repeat each turn

Results

• Infinite turns