Osgir, the Reconstructor Combos

Gonti's Aether Heart in your graveyard. All other permanents on the battlefield. Pull from Eternity exiled by Isochron Scepter's imprint ability. available each turn.

Ugin's Nexus and Mirror of Fate in your graveyard. All other permanents on the battlefield. Osgir does not have summoning sickness. You have at least one card in exile. At most available each turn.

Ugin's Nexus in graveyard. All other permanents on the battlefield. Isochron Scepter imprinting Pull from Eternity. Osgir does not have summoning sickness. available each turn.