Retrofitter Foundry + Ashnod's Altar + Clock of Omens + Mondrak, Glory Dominus

Retrofitter Foundry

Ashnod's Altar

Clock of Omens

Mondrak, Glory Dominus

How it works

1. Activate Retrofitter Foundry's second ability by paying 2 and tapping it, creating two 1/1 Servo artifact creature tokens.
2. Activate Clock of Omens by tapping the Servos, untapping Retrofitter Foundry.
3. Activate Ashnod's Altar by sacrificing a Servo, adding CC.
4. Repeat.
5. Once you have infinite mana, you may instead use Retrofitter Foundry's first ability to untap it and get infinite untapped Servo tokens.

This engine turns a humble workshop into an overwhelming token and mana factory by taking full advantage of a few key permanents. Mondrak, Glory Dominus quietly supercharges the entire operation by doubling every single token that Retrofitter Foundry produces, ensuring you get double the Servo tokens for your investment. Ashnod's Altar then provides the necessary sacrifice outlet to turn those extra bodies into a surplus of colorless mana, while Clock of Omens neatly untaps your Retrofitter Foundry so you can keep the loop spinning endlessly.