How can you create a combo with Medomai the Ageless, Preeminent Captain, Arcane Adaptation, Crystal Shard?
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[START OF COMBO]This combo can be formed with Medomai the Ageless, Preeminent Captain, Arcane Adaptation, Crystal Shard

Color identity: WU
Mana cost: {U} each turn
Steps:
  1. Declare Preeminent Captain as an attacker.
  2. Preeminent Captain triggers, putting Medomai from your hand onto the battlefield tapped and attacking.
  3. Deal combat damage with Medomai, causing you to take an extra turn after this one.
  4. Activate Crystal Shard by paying {U} and tapping it, returning Medomai to your hand.
  5. Pass the turn.
  6. Repeat.[END OF COMBO STEPS]

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

Other prerequisites:
  - All permanants must be on the battlefield
  - Medomai in hand.Preeminent Captain does not have summoning sickness.
  - "Sphinx" chosen with Arcane Adaptation.
  - Opponents can not block and kill Preeminent Captain and Medomai.
[END OF COMBO PREREQUISITES]
assistant