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

Infinite turns

Lock

Muldrotha, the Gravetide

Mu Yanling

Doubling Season

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

Vorinclex, Monstrous Raider

Activate Liquimetal Coating by tapping it, causing Mu Yanling to become an artifact until end of turn.
Activate Vorel by paying {G}{U} and tapping it, doubling the number of loyalty counters on Mu Yanling.
Activate Mu Yanling's third loyalty ability by removing ten loyalty counters from it, causing you to take an extra turn after this one.
Repeat each turn.

Vorel of the Hull Clade

Liquimetal Coating

Activate Liquimetal Torque's second ability by tapping it, causing Mu Yanling to become an artifact until end of turn.
Activate Vorel by paying {G}{U} and tapping it, doubling the number of loyalty counters on Mu Yanling.
Activate Mu Yanling's third loyalty ability by removing ten loyalty counters from it, causing you to take an extra turn after this one.
Repeat each turn.

Liquimetal Torque

Activate Vorel by paying {G}{U} and tapping it, doubling the number of loyalty counters on Mu Yanling.
Activate Mu Yanling's third loyalty ability by removing ten loyalty counters from it, causing you to take an extra turn after this one.
Repeat each turn.

Encroaching Mycosynth

Luxior, Giada's Gift

Mycosynth Lattice

Activate Memnarch's first ability by paying {1}{U}{U}, causing Mu Yanling to become an artifact.
Activate Vorel by paying {G}{U} and tapping it, doubling the number of loyalty counters on Mu Yanling.
Activate Mu Yanling's third loyalty ability by removing ten loyalty counters from it, causing you to take an extra turn after this one.
Repeat from step 2 each turn.

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