Vorel of the Hull Clade + Ichormoon Gauntlet + Liquimetal Coating + Ugin, the Spirit Dragon

Vorel of the Hull Clade

Ichormoon Gauntlet

Liquimetal Coating

Ugin, the Spirit Dragon

How it works

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