Tezzeret the Seeker, The Peregrine Dynamo, and Pyramid of the Pantheon

Prerequisites

• Tezzeret the Seeker on the battlefield
• The Peregrine Dynamo on the battlefield
• Pyramid of the Pantheon on the battlefield

Steps

1. Activate Tezzeret's first loyalty ability by putting a loyalty counter on it, targeting Pyramid of the Pantheon and The Peregrine Dynamo
2. Holding priority, activate Pyramid of the Pantheon by tapping it, adding three mana of any color
3. Activate The Peregrine Dynamo by paying and tapping it, copying Tezzeret's ability, targeting Pyramid of the Pantheon and The Peregrine Dynamo
4. Resolve the copy of Tezzeret's ability, untapping Pyramid of the Pantheon and The Peregrine Dynamo
5. Repeat from step 2

Results

• Infinite colored mana
• Infinite mana artifacts you control can produce
• Infinite untap of artifacts you control