Cultivator Colossus + Abundance + Maze's End + Archelos, Lagoon Mystic

Cultivator Colossus

Abundance

Maze's End

Archelos, Lagoon Mystic

How it works

1. Cast Cultivator Colossus by paying 4.
2. Cultivator Colossus enters the battlefield, putting a land card from your hand onto the battlefield untapped due to Archelos, then revealing cards from the top of your library until you reveal a land card, putting it in your hand and the rest of the revealed cards on the bottom of your library in any order.
3. Repeat this process, putting a land card from your hand onto the battlefield untapped due to Archelos.
4. Repeat step 3 until you have Maze's End and ten Gates with different names on the battlefield.
5. Activate three of the Gates by tapping them, adding 3.
6. Activate Maze's End's second ability by paying 3, tapping it and returning Maze's End to your hand, causing you to win the game.