Progenitor Mimic | Time Stretch | Pinnacle Monk // Mystic Peak

Cards

Time Stretch in hand.
Progenitor Mimic and
Pinnacle Monk // Mystic Peak on the battlefield (
Progenitor Mimic as a copy of
Pinnacle Monk).
({8} magic symbol) ({U} magic symbol) ({U} magic symbol) each other turn available.

Cast
Time Stretch by paying ({8} magic symbol) ({U} magic symbol) ({U} magic symbol) , causing you to take two extra turns after this one.
At the beginning of your next upkeep,
Progenitor Mimic triggers, creating a token copy of
Pinnacle Monk.
When the token
Pinnacle Monk enters the battlefield, it triggers, returning
Time Stretch from your graveyard to your hand.
Move to your second extra turn.
Repeat.