Ghostly Flicker + Mystic Sanctuary + Eternal Witness + Temporal Manipulation

Ghostly Flicker

Mystic Sanctuary

Eternal Witness

Temporal Manipulation

How it works

1. Activate Mystic Sanctuary by tapping it, adding .
2. Cast Temporal Manipulation by paying its mana cost, causing you to take an extra turn after this one.
3. Cast Ghostly Flicker by paying 2, blinking Mystic Sanctuary and Eternal Witness.
4. When Eternal Witness and Mystic Sanctuary enter the battlefield, they trigger.
5. Resolve the Eternal Witness trigger, returning Ghostly Flicker from your graveyard to your hand.
6. Resolve the Mystic Sanctuary trigger, putting Temporal Manipulation from your graveyard onto the top of your library.
7. Move to your next turn, drawing Temporal Manipulation during your draw step.
8. Repeat.

This elegant loop places your entire deck at your command by taking infinite extra turns. It all starts by casting Temporal Manipulation to secure the turn you need, followed by Ghostly Flicker to exile and return both Eternal Witness and Mystic Sanctuary. When Eternal Witness re-enters, it plucks Ghostly Flicker right back out of your graveyard, while Mystic Sanctuary's triggered ability places Temporal Manipulation back on top of your library, ready to be drawn and cast again on your next turn.