Mystic Sanctuary + Vedalken Mastermind + Notorious Throng

Mystic Sanctuary

Vedalken Mastermind

Notorious Throng

How it works

1. Deal combat damage using a Rogue.
2. Cast Notorious Throng for its prowl cost by paying 5, causing you to take an extra turn after this one.
3. Play Mystic Sanctuary.
4. When Mystic Sanctuary enters untapped, it triggers, putting Notorious Throng from your graveyard onto the top of your library.
5. Move to your next turn, drawing Notorious Throng during your draw step.
6. Activate Mystic Sanctuary by tapping it, adding .
7. Activate Vedalken Mastermind by paying and tapping it, returning Mystic Sanctuary from the battlefield to your hand.
8. Repeat.

This clever loop lets you take infinite turns by endlessly recycling your win condition. After successfully connecting with a Rogue to cast Notorious Throng for its prowl cost, you play Mystic Sanctuary; because you control enough Islands, it enters the battlefield untapped and triggers to place the sorcery right back on top of your library. From there, Vedalken Mastermind steps in to bounce the land back to your hand so you can replay it on your next extra turn, drawing Notorious Throng anew to repeat the entire process.