Medomai the Ageless + Idris, Soul of the TARDIS + Thrummingbird + Liquimetal Torque

Medomai the Ageless

Idris, Soul of the TARDIS

Thrummingbird

Liquimetal Torque

How it works

1. Activate Liquimetal Torque's second ability by tapping it, causing Medomai the Ageless to become an artifact until end of turn.
2. Deal combat damage to an opponent using Medomai the Ageless.
3. Medomai the Ageless triggers, causing you to take an extra turn after this one.
4. Cast Idris by paying 1.
5. When Idris enters the battlefield, it triggers, exiling Medomai the Ageless until Idris leaves the battlefield.
6. Move to your extra turn.
7. At the beginning of your upkeep, Idris's vanishing ability triggers, removing a time counter from it.
8. Deal combat damage to an opponent using Idris and Thrummingbird.
9. Idris and Thrummingbird trigger.
10. Resolve the Idris trigger, causing you to take an extra turn after this one.
11. Resolve the Thrummingbird trigger, putting a time counter on Idris.
12. Repeat from step 6.