How can you create a combo with Adarkar Valkyrie, Intruder Alarm, Goblin Bombardment?
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[START OF COMBO]This combo can be formed with Adarkar Valkyrie, Intruder Alarm, Goblin Bombardment

Color identity: URW
Mana cost: 
Steps:
  1. Activate Adarkar Valkyrie by tapping it, targeting another nontoken creature you control.
  2. Activate Goblin Bombardment by sacrificing the creature targeted in step 1.
  3. When the creature dies, Adarkar Valkyrie triggers, returning the sacrificed creature from your graveyard to the battlefield.
  4. When the creature enters the battlefield, Intruder Alarm triggers, untapping all creatures.
  5. Resolve the Goblin Bombardment ability, dealing 1 damage to any target.
  6. Repeat.[END OF COMBO STEPS]

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

Other prerequisites:
  - All permanants must be on the battlefield
  - Adarkar Valkyrie does not have summoning sickness.
  - You control at least one additional nontoken creature.
[END OF COMBO PREREQUISITES]
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