How can you create a combo with Intruder Alarm, Stonybrook Schoolmaster, Sand Squid?
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[START OF COMBO]This combo can be formed with Intruder Alarm, Stonybrook Schoolmaster, Sand Squid

Color identity: WU
Mana cost: 
Steps:
  1. Activate Sand Squid by tapping it, tapping Stonybrook Schoolmaster.
  2. Stonybrook Schoolmaster triggers, creating a 1/1 Merfolk Wizard creature token.
  3. When the Merfolk Wizard enters the battlefield, Intruder Alarm triggers, untapping all creatures.
  4. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite creature tokens
  - Infinite enters the battlefield
  - Infinite mana creatures you control can produce
  - Infinite untap of all creatures[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - Sand Squid and Stonybrook Schoolmaster do not have summoning sickness.
[END OF COMBO PREREQUISITES]
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