Tezzeret the Seeker + The Peregrine Dynamo + Coveted Jewel

Tezzeret the Seeker

The Peregrine Dynamo

Coveted Jewel

How it works

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