How can you create a combo with Nevinyrral, Urborg Tyrant, Deadeye Navigator, Phyrexian Altar?
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[START OF COMBO]This combo can be formed with Nevinyrral, Urborg Tyrant, Deadeye Navigator, Phyrexian Altar

Color identity: WUB
Mana cost: {1}{U}
Steps:
  1. Activate Nevinyrral by paying {1}{U}, blinking itself.
  2. Nevinyrral enters the battlefield, triggering itself and Deadeye Navigator's soulbond ability.
  3. Resolve the Nevinyrral trigger, creating a tapped 2/2 Zombie creature token for each creature that's died this turn.
  4. Resolve the Deadeye Navigator trigger, repairing it and Nevinyrral.
  5. Activate Phyrexian Altar twice by sacrificing two Zombies, adding {1}{U}.
  6. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite blinking
  - Infinite colored mana
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite sacrifice triggers
  - Infinite tapped creature tokens[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - Deadeye Navigator is paired with Nevinyrral.
  - At least two creatures have died this turn.
[END OF COMBO PREREQUISITES]
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