Progenitor Mimic and Archaeomancer on the battlefield.
Progenitor Mimic on the battlefield as a copy of Archaeomancer
You control at least one Rogue that does not have summoning sickness and cannot be blocked by an opponent.
({5} magic symbol) ({U} magic symbol) each turn available.
Steps
Deal combat damage to an opponent using a Rogue.
Cast Notorious Throng for its prowl cost by paying ({5} magic symbol) ({U} magic symbol) , causing you to take an extra turn after this one.
At the beginning of your next upkeep, Progenitor Mimic triggers, creating a token copy of Archaeomancer.
When the Archaeomancer token enters the battlefield, it triggers, returning Notorious Throng from your graveyard to your hand.