How can you create a combo with Displacer Kitten, Dockside Extortionist, Reiterate?
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[START OF COMBO]This combo can be formed with Displacer Kitten, Dockside Extortionist, Reiterate

Color identity: UR
Mana cost: {4}{R}{R}
Steps:
  1. Cast an instant or sorcery spell, or wait for an opponent to cast one.
  2. Holding priority, cast Reiterate with buyback by paying {4}{R}{R}, targeting that spell.
  3. Displacer Kitten triggers, blinking Dockside Extortionist.
  4. Dockside Extortionist enters the battlefield, creating at least seven Treasure tokens.
  5. Activate six Treasure tokens by tapping and sacrificing them, adding {4}{R}{R}.
  6. Resolve Reiterate, creating a copy of the instant or sorcery spell and returning Reiterate to your hand.
  7. Repeat from step 2.[END OF COMBO STEPS]

Result:
  - Infinite blinking of nonland permanents you control
  - Infinite colored mana
  - Infinite copies of any instant/sorceries on the stack
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite magecraft triggers
  - Infinite storm count
  - Infinite Treasure tokens[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Displacer Kitten must be on the battlefield
  - Dockside Extortionist must be on the battlefield
  - Reiterate must be in your hand
  - Opponents control at least seven artifacts and/or enchantments.
[END OF COMBO PREREQUISITES]
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