Mystic Sanctuary + Dust Bowl + Time Walk + Szarel, Genesis Shepherd

Mystic Sanctuary

Dust Bowl

Time Walk

Szarel, Genesis Shepherd

How it works

1. Cast Time Walk by paying its mana cost, causing you to take an extra turn after this one.
2. Activate Dust Bowl by paying 3, tapping it and sacrificing Mystic Sanctuary, destroying a nonbasic land.
3. Play Mystic Sanctuary from your graveyard.
4. When Mystic Sanctuary enters untapped, it triggers, putting Time Walk from your graveyard onto the top of your library.
5. Move to your next turn, drawing Time Walk during your draw step.
6. Repeat.

This infinite turn engine uses the raw power of Time Walk to grant you endless consecutive turns, fueled completely from the graveyard. Szarel, Genesis Shepherd enables this loop by allowing you to replay lands from your graveyard, turning the sacrifice cost of Dust Bowl into a vital advantage rather than a true loss. You repeatedly sacrifice Mystic Sanctuary to Dust Bowl to clear away a nonbasic land, and because Mystic Sanctuary enters untapped when you play it back out from the graveyard, its triggered ability puts Time Walk right back on top of your library for you to draw and cast again.