Ghostly Flicker + Mystic Sanctuary + Elsha of the Infinite + Relic of Sauron

Ghostly Flicker

Mystic Sanctuary

Elsha of the Infinite

Relic of Sauron

How it works

1. Activate Mystic Sanctuary and Relic of Sauron by tapping them, adding 2.
2. Cast Ghostly Flicker either from your hand or from the top of your library by paying 2.
3. Elsha's prowess ability triggers, giving it +1/+1 until end of turn.
4. Resolve Ghostly Flicker, blinking Mystic Sanctuary and Relic of Sauron.
5. When Mystic Sanctuary enters untapped, it triggers, putting Ghostly Flicker from your graveyard onto the top of your library.
6. Repeat.

This elegant loop turns a modest land and artifact into a self-sustaining engine by repeatedly leveraging Mystic Sanctuary's ability to recycle spells upon entering the battlefield. With the top-deck casting permission granted by Elsha of the Infinite, you can cast Ghostly Flicker directly off your library using the mana generated by tapping Relic of Sauron. As Ghostly Flicker resolves, it exiles both Mystic Sanctuary and Relic of Sauron, returning them to the battlefield fresh; the land enters untapped to place the instant right back on top of your library for the next iteration.