Plargg, Dean of Chaos // Augusta, Dean of Order, Lithoform Engine, and Karn, the Great Creator

Prerequisites

• Plargg, Dean of Chaos // Augusta, Dean of Order on the battlefield
• Lithoform Engine on the battlefield
• Karn, the Great Creator on the battlefield
• Dean of Order
• Creatures you control can tap to produce at least
• You control a creature that can attack this turn

Steps

1. Activate Karn's first loyalty ability by putting a loyalty counter on it, causing Lithoform Engine to become an artifact creature until end of turn
2. Move to your combat phase, and declare any creature you control as an attacker, triggering Augusta
3. Holding priority, activate all mana-producing creatures you control by tapping them, adding at least
4. Activate Lithoform Engine's first ability by paying and tapping it, copying Augusta's ability
5. Resolve the copy of Augusta's ability, untapping all creatures you control
6. Repeat from step 3

Results

• Infinite mana creatures you control can produce
• Infinite untap of creatures you control