How can you create a combo with Livio, Oathsworn Sentinel, Palinchron, Deceiver Exarch?
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[START OF COMBO]This combo can be formed with Livio, Oathsworn Sentinel, Palinchron, Deceiver Exarch

Color identity: WU
Mana cost: 
Steps:
  1. Activate up to seven mana-producing lands by tapping them, adding at least {5}{W}{W}{W}.
  2. Activate Livio's first ability twice by paying {2}{W}{W}, exiling Palinchron and Deceiver Exarch with aegis counters on them.
  3. Activate Livio's second ability by paying {2}{W} and tapping it, returning Palinchron and Deceiver Exarch from exile to the battlefield.
  4. Deceiver Exarch and Palinchron enter the battlefield, triggering their abilities.
  5. Resolve the Palinchron trigger, untapping up to seven lands you control.
  6. Resolve the Deceiver Exarch trigger, untapping Livio.
  7. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite blinking
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite mana lands you control can produce[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - Livio does not have summoning sickness.
  - You control up to seven lands that can tap to produce at least {5}{W}{W}{W}.
[END OF COMBO PREREQUISITES]
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