Mystic Sanctuary + Dust Bowl + Perennial Behemoth + Time Warp

Mystic Sanctuary

Dust Bowl

Perennial Behemoth

Time Warp

How it works

1. Cast Time Warp 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 Warp from your graveyard onto the top of your library.
5. Move to your next turn, drawing Time Warp during your draw step.
6. Repeat.

This brilliant engine achieves a near-infinite turns lock by weaponizing your graveyard as an extension of the battlefield. By using Perennial Behemoth, you gain the ability to replay lands from your graveyard, specifically fetching Mystic Sanctuary so that its landfall-like trigger continuously puts Time Warp right back on top of your library to be drawn. Meanwhile, Dust Bowl serves as the essential sacrifice outlet that sends Mystic Sanctuary back to the graveyard in the first place, ensuring you can repeat the loop turn after turn.