Efreet Flamepainter + Isochron Scepter + Pull from Eternity + Alrund's Epiphany

Efreet Flamepainter

Isochron Scepter

Pull from Eternity

Alrund's Epiphany

How it works

1. Deal combat damage to an opponent using Efreet Flamepainter.
2. Efreet Flamepainter triggers, causing you to cast Alrund's Epiphany from your graveyard without paying its mana cost.
3. Resolve Alrund's Epiphany, causing you to create two 1/1 Bird creature tokens, take an extra turn after this one and exile Alrund's Epiphany.
4. Activate Isochron Scepter by paying 2 and tapping it, casting a copy of Pull from Eternity without paying its mana cost.
5. Resolve Pull from Eternity, putting Alrund's Epiphany from exile into your graveyard.
6. Repeat each turn.

This cunning loop lets you chain infinite turns by repeatedly cycling a devastating extra-turn spell right back out of the ether. It all hinges on Efreet Flamepainter's double strike and combat damage trigger, which pulls Alrund's Epiphany straight from your graveyard to hand you continuous extra turns. Once Alrund's Epiphany inevitably exiles itself upon resolution, Isochron Scepter steps in to cast a copied Pull from Eternity, smoothly rescuing the sorcery from exile and returning it to your graveyard just in time for the next combat step.