Activate Ashnod's Altar by sacrificing Huatli's Raptor, adding CC.
Huatli's Raptor dies, triggering Magnanimous Magistrate, causing you to remove two reprieve counters from Magnanimous Magistrate and return Huatli's Raptor from your graveyard to the battlefield.
Huatli's Raptor enters the battlefield, causing you to proliferate, putting two reprieve counters on Magnanimous Magistrate.