Lyla triggers, putting a +1/+1 counter on a creature you control.
Animation Module triggers, causing you to pay 1 to create a 1/1 Servo artifact creature token.
Activate Krark-Clan Ironworks by sacrificing the Servo, adding CC.
When the Servo dies, Fecundity triggers, causing you to draw a card.
Repeat from step 2.
This delightful loop is fueled by Lyla, Holographic Assistant turning every card draw into a +1/+1 counter, which in turn triggers Animation Module to let you buy a 1/1 Servo token for a single mana. Once you sacrifice that newly minted Servo to Krark-Clan Ironworks for two generic mana, its death triggers Fecundity to draw you a fresh card and restart the entire chain. Because Krark-Clan Ironworks yields more mana than Animation Module asks for, you pocket an excess of colorless energy while cycling through your deck, pumping your creatures, and churning out endless artifact deaths.