How can you create a combo with Medomai the Ageless, Satoru Umezawa?
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[START OF COMBO]This combo can be formed with Medomai the Ageless, Satoru Umezawa

Color identity: WUB
Mana cost: {4}{U}{U}{B}{B} each turn
Steps:
  1. Declare the additional creature as an attacker, attacking an opponent unable to block it.
  2. When the creature is unblocked, activate Medomai's ninjitsu ability by paying {2}{U}{B} and returning the creature to your hand, putting Medomai onto the battlefield tapped and attacking.
  3. Deal combat damage with Medomai, triggering its ability, causing you to take an extra turn after this one.
  4. Before the combat phase ends, activate the creature card in your hand's ninjutsu ability by paying {2}{U}{B} and returning Medomai from the battlefield to your hand, putting the creature onto the battlefield tapped and attacking.
  5.  Repeat each turn.[END OF COMBO STEPS]

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

Other prerequisites:
  - Medomai the Ageless must be in your hand
  - Satoru Umezawa must be on the battlefield
  - You control an additional nontoken creature that does not have summoning sickness.
  - An opponent is unable to block creatures you control.
[END OF COMBO PREREQUISITES]
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