How can you create a combo with Haakon, Stromgald Scourge, Soldevi Adnate, Intruder Alarm?
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[START OF COMBO]This combo can be formed with Haakon, Stromgald Scourge, Soldevi Adnate, Intruder Alarm

Color identity: UB
Mana cost: 
Steps:
  1. Activate Soldevi Adnate by tapping it and sacrificing any other nontoken Knight that can be cast using only black mana, adding an amount of {B} equal to that creature's mana value.
  2. Cast the Knight from your graveyard by paying its mana cost.
  3. The Knight enters the battlefield, triggering Intruder Alarm, untapping all creatures.
  4. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite mana creatures you control can produce
  - Infinite sacrifice triggers
  - Infinite untap of all creatures[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - Soldevi Adnate does not have summoning sickness.
  - You control another nontoken Knight that can be cast using only black mana.
[END OF COMBO PREREQUISITES]
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