Junk Golem + Animation Module + Ashnod's Altar + Fecundity

Junk Golem

Animation Module

Ashnod's Altar

Fecundity

How it works

1. Activate Junk Golem by paying 1 and discarding a card, putting a +1/+1 counter on it.
2. Animation Module triggers, causing you to pay 1 to create a 1/1 Servo artifact creature token.
3. Activate Ashnod's Altar by sacrificing the Servo, adding CC.
4. When the Servo dies, Fecundity triggers, causing you to draw a card.
5. Repeat.

This crafty loop turns your hand into a resource engine by leveraging Junk Golem’s activated ability to continuously put +1/+1 counters on itself for the low cost of {1} and a discarded card. Each time that counter is added, Animation Module’s passive trigger gives you the option to pay {1} and create a 1/1 Servo artifact creature token. You can then feed that fresh token straight into Ashnod's Altar to generate {C}{C}, which easily pays for the entire activation costs of the Golem and the Module while leaving you floating mana. Finally, Fecundity ensures that every time you sacrifice the Servo to the Altar, its death triggers a card draw, letting you continuously replace the discarded card and fuel the engine indefinitely.