How can you create a combo with Gerrard, Weatherlight Hero, Adarkar Valkyrie, Hellraiser Goblin, Goblin Bombardment?
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[START OF COMBO]This combo can be formed with Gerrard, Weatherlight Hero, Adarkar Valkyrie, Hellraiser Goblin, Goblin Bombardment

Color identity: RW
Mana cost: 
Steps:
  1. Activate Adarkar Valkyrie by tapping it, causing Gerrard to be returned from your graveyard to the battlefield the next time it dies this turn.
  2. Activate Goblin Bombardment twice by sacrificing Gerrard and Adarkar Valkyrie.
  3. Adarkar Valkyrie and Gerrard trigger.
  4. Resolve the Adarkar Valkyrie trigger, returning Gerrard from your graveyard to the battlefield.
  5. Resolve the Gerrard trigger, returning all artifact and creature cards that were put into your graveyard this turn from your graveyard onto the battlefield.
  6. Resolve the Goblin Bombardment abilities, dealing 2 damage to any target(s).
  7. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite damage
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite sacrifice triggers[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
[END OF COMBO PREREQUISITES]
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