How can you create a combo with Dualcaster Mage, Black Sun's Twilight, Goblin Bombardment?
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[START OF COMBO]This combo can be formed with Dualcaster Mage, Black Sun's Twilight, Goblin Bombardment

Color identity: BR
Mana cost: {6}{B}{R}{R}
Steps:
  1. Cast Black Sun's Twilight by paying {5}{B}, optionally choosing to target a creature.
  2. Holding priority, cast Dualcaster Mage by paying {1}{R}{R}.
  3. When Dualcaster Mage enters the battlefield, it triggers, copying Black Sun's Twilight, optionally choosing to target a creature.
  4. Holding priority, activate Goblin Bombardment by sacrificing Dualcaster Mage, dealing 1 damage to any target.
  5. Resolve the copy of Black Sun's Twilight, giving up to one creature -5/-5 until end of turn and returning Dualcaster Mage from your graveyard to the battlefield.
  6. Repeat from step 3.[END OF COMBO STEPS]

Result:
  - Infinite leaves the battlefield
  - Infinite enters the battlefield
  - Infinite sacrifice triggers
  - Infinite death triggers
  - Infinite damage
  - Infinite magecraft triggers
  - Reduce any number of target creatures' toughness to zero[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Dualcaster Mage must be in your hand
  - Black Sun's Twilight must be in your hand
  - Goblin Bombardment must be on the battlefield
[END OF COMBO PREREQUISITES]
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