How can you create a combo with Aesi, Tyrant of Gyre Strait, Walk the Aeons, Mystic Sanctuary, Ancient Greenwarden?
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[START OF COMBO]This combo can be formed with Aesi, Tyrant of Gyre Strait, Walk the Aeons, Mystic Sanctuary, Ancient Greenwarden

Color identity: GU
Mana cost: {4}{U}{U} each turn
Steps:
  1. Cast Walk the Aeons by paying {4}{U}{U}, sacrificing Mystic Sanctuary and two other Islands, causing you to take an extra turn after this one and returning Walk the Aeons to your hand.
  2. Play any Island except Mystic Sanctuary from your graveyard.
  3. When the land enters the battlefield, Aesi triggers twice, allowing you to draw two cards.
  4. Move to your next turn.
  5. Cast Walk the Aeons by paying {4}{U}{U}, causing you to take an extra turn after this one.
  6. Play any Island except Mystic Sanctuary from your graveyard.
  7. When the land enters the battlefield, Aesi triggers twice, allowing you to draw two cards.
  8. Play Mystic Sanctuary from your graveyard.
  9. When Mystic Sanctuary enters the battlefield, it and Aesi trigger twice.
  10. Resolve the first Mystic Sanctuary trigger, putting Walk the Aeons on top of your library from your graveyard.
  11. Resolve the second Mystic Sanctuary trigger, doing nothing.
  12. Resolve the Aesi triggers, causing you to draw Walk the Aeons and up to one additional card from the top of your library.
  13. Move to your next turn.
  14. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite turns[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Aesi, Tyrant of Gyre Strait must be on the battlefield
  - Walk the Aeons must be in your hand
  - Mystic Sanctuary must be on the battlefield
  - Ancient Greenwarden must be on the battlefield
  - You control at least four Islands.
[END OF COMBO PREREQUISITES]
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