Cultivator Colossus + Abundance + Maze's End + Bear Umbra

Cultivator Colossus

Abundance

Maze's End

Bear Umbra

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 tapped, 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 tapped.
4. Repeat step 3 until you have Maze's End and ten Gates with different names on the battlefield.
5. Move to your combat phase, and declare the creature with Bear Umbra attached as an attacker.
6. The creature with Bear Umbra attached triggers, untapping all lands you control.
7. Activate three of the Gates by tapping them, adding 3.
8. 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.

By combining Cultivator Colossus with Abundance, you completely bypass the usual limits of drawing cards, turning the Colossus's entry trigger into an unstoppable engine that dumps every single land from your deck straight onto the battlefield. Once your entire mana base is laid bare, you can equip your attacker with Bear Umbra to effortlessly untap all those lands during combat, fueling the activation cost needed to fetch your final piece. That final piece is Maze's End, which cashes in your massive collection of diverse Gates to instantly claim victory.