Idris, Soul of the TARDIS + Lithoform Engine + Basalt Monolith + Sphinx's Disciple + Neurok Transmuter

Idris, Soul of the TARDIS

Lithoform Engine

Basalt Monolith

Sphinx's Disciple

Neurok Transmuter

How it works

1. Activate Neurok Transmuter's first ability by paying , causing Sphinx's Disciple to become an artifact until end of turn.
2. Cast Idris either from your hand or from the command zone by paying 1 and commander tax, if applicable.
3. When Idris enters the battlefield, its imprint ability triggers, targeting Sphinx's Disciple.
4. Holding priority, activate Lithoform Engine's first ability by paying 2 and tapping it, copying Idris' trigger, targeting Basalt Monolith.
5. Resolve both Idris triggers, exiling Basalt Monolith and Sphinx's Disciple.
6. During your next turn, activate Idris using Basalt Monolith's first ability by tapping it, adding CCC.
7. Activate Idris using Basalt Monolith's second ability by paying 3, untapping it.
8. Sphinx's Disciple triggers, causing you to draw a card.
9. Repeat from step 6.

This ingenious brew turns Idris, Soul of the TARDIS into an absolute powerhouse by stitching together a most unlikely menagerie of artifacts and creatures. By utilizing Lithoform Engine's ability-copying prowess to double the entry trigger of Idris, you can imprint both the mana-producing engine of Basalt Monolith and the card-drawing engine of Sphinx's Disciple simultaneously. Of course, since Sphinx's Disciple isn't an artifact by default, Neurok Transmuter steps in right on cue to temporarily turn the creature into an artifact just in time for the imprint. Once everything is safely exiled beneath Idris, you can endlessly tap and untap the imprinted Basalt Monolith ability to churn out infinite colorless mana while triggering the imprinted Sphinx's Disciple ability over and over again to draw your entire deck.