How can you create a combo with Cultivator Colossus, Abundance, Maze's End, Bear Umbra?
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[START OF COMBO]This combo can be formed with Cultivator Colossus, Abundance, Maze's End, Bear Umbra

Color identity: G
Mana cost: {4}{G}{G}{G}
Steps:
  1. Cast Cultivator Colossus by paying {4}{G}{G}{G}.
  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.[END OF COMBO STEPS]

Result:
  - Order your library
  - Put all land cards from your hand and library onto the battlefield
  - Win the game[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Cultivator Colossus must be in your hand
  - Abundance must be on the battlefield
  - Maze's End must be in your hand or on the battlefield or in the library
  - Bear Umbra must be on the battlefield
  - Bear Umbra attached to any creature that can attack this turn.
  - You have at least ten Gates with different names on the battlefield, in hand and/or in library.
  - You have a land card in hand.
[END OF COMBO PREREQUISITES]
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