Medomai the Ageless + Idris, Soul of the TARDIS + Jhoira's Timebug + Neurok Transmuter

Medomai the Ageless

Idris, Soul of the TARDIS

Jhoira's Timebug

Neurok Transmuter

How it works

1. Activate Neurok Transmuter's first ability by paying , 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. Activate Jhoira's Timebug by tapping it, putting a time counter on 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 triggers, causing you to take an extra turn after this one.
11. Repeat from step 6.

By transforming Medomai the Ageless into an artifact using Neurok Transmuter, you can legally exile it beneath Idris, Soul of the TARDIS when Idris enters the battlefield. This grants Idris the legendary sphinx's devastating combat damage trigger—allowing you to take extra turns without being restricted by Medomai's clause against attacking during those extra turns. To keep the vanishing mechanic from stripping Idris away prematurely, you simply tap Jhoira's Timebug during each cycle to add a fresh time counter, sustaining the infinite turn loop indefinitely.