Tezzeret the Seeker | The Peregrine Dynamo | The Eternity Elevator

Cards

Activate
Tezzeret's first loyalty ability by putting a loyalty counter on it, targeting
The Eternity Elevator and
The Peregrine Dynamo.
Holding priority, activate
The Eternity Elevator by tapping it, adding ({C} magic symbol) ({C} magic symbol) ({C} magic symbol) .
Activate
The Peregrine Dynamo by paying ({1} magic symbol) and tapping it, copying
Tezzeret's ability, targeting
The Eternity Elevator and
The Peregrine Dynamo.
Resolve the copy of
Tezzeret's ability, untapping
The Eternity Elevator and
The Peregrine Dynamo.
Repeat from step 2.

You can use either of
The Eternity Elevator's mana abilities if you're able to do so.