Emet-Selch, Unsundered // Hades, Sorcerer of Eld + Planar Incision

Prerequisites

You have enough mana to cast the extra turn spell and Planar Incision each turn. There are at least thirteen cards in your graveyard.

Steps

1. Cast the extra turn spell from your graveyard by paying its mana cost.
2. Holding priority, cast Planar Incision from your graveyard by paying its mana cost, blinking Hades and causing it to re-enter the battlefield as Emet-Selch.
3. When Emet-Selch enters the battlefield, it triggers, causing you to loot.
4. Resolve the extra turn spell, causing you to take an extra turn after this one.
5. At the beginning of your upkeep during your extra turn, Emet-Selch triggers, transforming itself into Hades.
6. Repeat.