Dross Scorpion + Fecundity + March of the Machines + The Underworld Cookbook

GU identity

Commander legal

The 4 combo pieces

What must be in place

You have at least one card in hand.
The Underworld Cookbook does not have summoning sickness.

How to execute it

  1. Activate The Underworld Cookbook's first ability by tapping it and discarding a card, creating a Food artifact token.
  2. The Food enters the battlefield as a 0/0 artifact creature and dies as a state-based action due to having zero or less toughness.
  3. Dross Scorpion and Fecundity triggers.
  4. Resolve the Dross Scorpion trigger, untapping The Underworld Cookbook.
  5. Resolve the Fecundity trigger, causing you to draw a card.
  6. Repeat.

What the combo produces