How can you create a combo with Livio, Oathsworn Sentinel, Dockside Extortionist, Sparring Mummy?
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[START OF COMBO]This combo can be formed with Livio, Oathsworn Sentinel, Dockside Extortionist, Sparring Mummy

Color identity: RW
Mana cost: {1}{R}
Steps:
  1. Cast Dockside Extortionist by paying {1}{R}.
  2. Dockside Extortionist enters the battlefield, creating at least eight Treasure tokens.
  3. Activate seven Treasure tokens by tapping and sacrificing them, adding {4}{W}{W}{W}.
  4. Activate Livio's first ability twice by paying {2}{W}{W}, exiling Dockside Extortionist and Sparring Mummy with aegis counters on them.
  5. Activate Livio's second ability by paying {2}{W} and tapping it, returning Dockside Extortionist and Sparring Mummy from exile to the battlefield.
  6. Sparring Mummy and Dockside Extortionist enter the battlefield, triggering their abilities.
  7. Resolve the Dockside Extortionist trigger, creating at least eight Treasure tokens.
  8. Resolve the Sparring Mummy trigger, untapping Livio.
  9. Repeat from step 3.[END OF COMBO STEPS]

Result:
  - Infinite blinking
  - Infinite colored mana
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite Treasure tokens[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Livio, Oathsworn Sentinel must be on the battlefield
  - Dockside Extortionist must be in your hand
  - Sparring Mummy must be on the battlefield
  - Livio does not have summoning sickness.
  - Opponents control at least eight artifacts and/or enchantments.
[END OF COMBO PREREQUISITES]
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