Medomai the Ageless + Idris, Soul of the TARDIS + Sword of Truth and Justice + Thran Forge

Medomai the Ageless

Idris, Soul of the TARDIS

Sword of Truth and Justice

Thran Forge

How it works

1. Deal combat damage to an opponent using Medomai the Ageless.
2. Medomai the Ageless triggers, causing you to take an extra turn after this one.
3. Activate Thran Forge by paying 2, causing Medomai the Ageless to become an artifact.
4. Cast Idris by paying 1.
5. When Idris enters the battlefield, it triggers, exiling Medomai the Ageless until Idris leaves the battlefield.
6. Activate Sword of Truth and Justice's equip ability by paying 2, attaching it to Idris.
7. Move to your extra turn.
8. At the beginning of your upkeep, Idris's vanishing ability triggers, removing a time counter from it.
9. Deal combat damage to an opponent using Idris.
10. Idris and Sword of Truth and Justice trigger.
11. Resolve the Idris trigger, causing you to take an extra turn after this one.
12. Resolve the Sword of Truth and Justice trigger, putting a +1/+1 counter on a creature you control, then putting a time counter on Idris.
13. Repeat from step 7.