How can you create a combo with Naru Meha, Master Wizard, Extract from Darkness, Ashnod's Altar?
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[START OF COMBO]This combo can be formed with Naru Meha, Master Wizard, Extract from Darkness, Ashnod's Altar

Color identity: UB
Mana cost: {5}{U}{U}{U}{B}
Steps:
  1. Cast Extract from Darkness by paying {3}{U}{B}.
  2. Holding priority, cast Naru Meha by paying {2}{U}{U}.
  3. When Naru Meha enters the battlefield, it triggers, copying Extract from Darkness.
  4. Activate Ashnod's Altar by sacrificing Naru Meha, adding {C}{C}.
  5. Resolve the copy of Extract from Darkness, causing each player to mill two cards, and you to return Naru Meha from your graveyard to the battlefield.
  6. Repeat from step 3.[END OF COMBO STEPS]

Result:
  - Infinite colorless mana
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite magecraft triggers
  - Infinite mill
  - Infinite sacrifice triggers
  - Infinite self-mill
  - Put all creature and planeswalker cards from each opponent's library and graveyard onto the battlefield under your control[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Naru Meha, Master Wizard must be in your hand
  - Extract from Darkness must be in your hand
  - Ashnod's Altar must be on the battlefield
[END OF COMBO PREREQUISITES]
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