Lyla, Holographic Assistant + Animation Module + Ashnod's Altar + Fecundity

Lyla, Holographic Assistant

Animation Module

Ashnod's Altar

Fecundity

How it works

1. Draw a card.
2. Lyla triggers, putting a +1/+1 counter on a creature you control.
3. Animation Module triggers, causing you to pay 1 to create a 1/1 Servo artifact creature token.
4. Activate Ashnod's Altar by sacrificing the Servo, adding CC.
5. When the Servo dies, Fecundity triggers, causing you to draw a card.
6. Repeat from step 2.

This clever loop spins up a self-sustaining engine by turning card draw into creatures and back into mana again. Lyla, Holographic Assistant provides the vital spark whenever you draw a card, placing a +1/+1 counter on a creature to trigger Animation Module's ability to forge a Servo artifact creature token for the low cost of {1}. You can then feed that fresh token right into Ashnod's Altar to generate {C}{C}, leaving you plenty of mana left over to fuel the loop while triggering Fecundity to draw another card off the sacrifice. Because every single iteration replaces the card you drew and nets you colorless mana alongside endless creature and artifact triggers, you can easily repeat this cycle as many times as your heart desires.