Cast Reshape the Earth, searching your library for nine gates minus the number of gates already on the battlefield under your control and putting them onto the battlefield.
Activate Maze's End, searching your library for a tenth gate and putting it onto the battlefield, winning you the game.

Win the game

Maze's End

Reshape the Earth

Cast Cultivator Colossus by paying {4}{G}{G}{G}.
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.
Repeat this process, putting a land card from your hand onto the battlefield tapped.
Repeat step 3 until you have Maze's End and ten Gates with different names on the battlefield.
Maze's End and each of the Gates enter the battlefield, triggering Amulet of Vigor, untapping each of the Gates and Maze's End.
Activate three of the Gates by tapping them, adding {3}.
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.

Arrange your library in any order

Put all lands from your hand and library onto the battlefield

Cultivator Colossus

Abundance

Amulet of Vigor

Cast Cultivator Colossus by paying {4}{G}{G}{G}.
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.
Repeat this process, putting a land card from your hand onto the battlefield untapped due to Archelos.
Repeat step 3 until you have Maze's End and ten Gates with different names on the battlefield.
Activate three of the Gates by tapping them, adding {3}.
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.

Archelos, Lagoon Mystic

Cast Cultivator Colossus by paying {4}{G}{G}{G}.
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.
Repeat this process, putting a land card from your hand onto the battlefield tapped.
Repeat step 3 until you have Maze's End and ten Gates with different names on the battlefield.
Move to your end step.
At the beginning of your end step, Wilderness Reclamation triggers, untapping all lands you control.
Activate three of the Gates by tapping them, adding {3}.
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.

Wilderness Reclamation

Cast Boundless Realms by paying {6}{G}, causing you to search your library for a number of Gate cards equal to the number of lands you control, and put them onto the battlefield tapped.
Activate Maze's End's second ability by paying {3}, tapping it and returning it from the battlefield to your hand, searching your library for a Gate, putting it onto the battlefield and causing you to win the game.

Rootpath Purifier

Boundless Realms

Cast Cultivator Colossus by paying {4}{G}{G}{G}.
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.
Repeat this process, putting a land card from your hand onto the battlefield tapped.
Repeat step 3 until you have Maze's End and ten Gates with different names on the battlefield.
Move to your combat phase, and declare the creature with Bear Umbra attached as an attacker.
The creature with Bear Umbra attached triggers, untapping all lands you control.
Activate three of the Gates by tapping them, adding {3}.
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.

Bear Umbra

Cast New Frontiers by paying {9}{G} minus {1} for each unqiue Gate you control.
Resolve New Frontiers, causing you to search your library for that many Gate cards and put them onto the battlefield tapped, and allowing each opponent to do the same for basic lands.
Activate Maze's End's second ability by paying {3}, tapping it and returning it from the battlefield to your hand, searching your library for a Gate, putting it onto the battlefield and causing you to win the game.

Combos with "Maze's End"