How can you create a combo with Archelos, Lagoon Mystic, Zimone, Quandrix Prodigy, Retreat to Coralhelm, Orzhov Basilica?
user
[START OF COMBO]This combo can be formed with Archelos, Lagoon Mystic, Zimone, Quandrix Prodigy, Retreat to Coralhelm, Orzhov Basilica

Color identity: GWUB
Mana cost: {1}
Steps:
  1. Activate Zimone's first ability by paying {1} and tapping it, putting Orzhov Basilica from your hand onto the battlefield untapped due to Archelos.
  2. Orzhov Basilica enters the battlefield, triggering itself and Retreat to Coralhelm.
  3. Activate Orzhov Basilica by tapping it, adding {W}{B}.
  4. Resolve the Orzhov Basilica trigger from step 2, returning itself from the battlefield to your hand.
  5. Resolve the Retreat to Coralhelm trigger, untapping Zimone.
  6. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite black mana
  - Infinite landfall triggers
  - Infinite white mana[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Archelos, Lagoon Mystic must be on the battlefield
  - Zimone, Quandrix Prodigy must be on the battlefield
  - Retreat to Coralhelm must be on the battlefield
  - Orzhov Basilica must be in your hand
  - Zimone does not have summoning sickness.
  - Archelos is untapped.
[END OF COMBO PREREQUISITES]
assistant