How can you create a combo with Archelos, Lagoon Mystic, Thawing Glaciers, Retreat to Coralhelm, Wind Zendikon?
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[START OF COMBO]This combo can be formed with Archelos, Lagoon Mystic, Thawing Glaciers, Retreat to Coralhelm, Wind Zendikon

Color identity: BGU
Mana cost: 
Steps:
  1. Activate Thawing Glaciers by paying {1} and tapping it, searching your library for a basic land card and putting it onto the battlefield untapped due to Archelos.
  2. The land enters the battlefield, triggering Retreat to Coralhelm, untapping Thawing Glaciers.
  3. Activate the basic land by tapping it, adding {1}.
  4. Repeat.[END OF COMBO STEPS]

Result:
  - Near-infinite landfall triggers
  - Put all basic lands from your library onto the battlefield tapped[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - Wind Zendikon attached to Thawing Glaciers.
  - Thawing Glaciers does not have summoning sickness.
  - Archelos is untapped.
[END OF COMBO PREREQUISITES]
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