Activate any other planeswalker you control by putting zero loyalty counters on it, putting a loyalty counter on Aminatou.
Activate Aminatou's second loyalty ability by removing a loyalty counter from it, blinking Ugin.
Ugin enters the battlefield with fourteen loyalty counters due to Doubling Season.
Activate Ugin by removing twelve loyalty counters from it, causing you to take an extra turn after this one.
Repeat each turn.

Infinite turns

Lock

Aminatou, the Fateshifter

Ichormoon Gauntlet

Doubling Season

Ugin, the Spirit Dragon

Activate any other planeswalker you control by putting zero loyalty counters on it, putting a loyalty counter on Aminatou.
Activate Aminatou's second loyalty ability by removing a loyalty counter from it, blinking Ugin.
Ugin enters the battlefield with fourteen loyalty counters due to Vorinclex.
Activate Ugin by removing twelve loyalty counters from it, causing you to take an extra turn after this one.
Repeat each turn.

Vorinclex, Monstrous Raider

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

Vorel of the Hull Clade

Liquimetal Torque

Activate Liquimetal Coating by tapping it, causing Ugin to become an artifact until end of turn.
Activate Vorel of the Hull Clade by paying {G}{U} and tapping it, doubling the number of counters on Ugin.
Activate Ugin by removing twelve loyalty counters from it, causing you to take an extra turn after this one.
Repeat each turn.

Liquimetal Coating

Activate Vorel of the Hull Clade by paying {G}{U} and tapping it, doubling the number of counters on Ugin.
Activate Ugin by removing twelve loyalty counters from it, causing you to take an extra turn after this one.
Repeat each turn.

Combos with "Ugin, the Spirit Dragon"