How can you create a combo with Nadier, Agent of the Duskenel, Deadeye Navigator, Phyrexian Altar?
user
[START OF COMBO]This combo can be formed with Nadier, Agent of the Duskenel, Deadeye Navigator, Phyrexian Altar

Color identity: UB
Mana cost: {1}{U}
Steps:
  1. Activate Nadier by paying {1}{U}, blinking itself.
  2. Nadier's leaves-the-battlefield and Deadeye Navigator's soulbond ability each trigger.
  3. Resolve the Nadier trigger, creating a number of 1/1 Elf Warrior creature tokens equal to its power.
  4. Resolve the Deadeye Navigator trigger, repairing it and Nadier.
  5. Activate Phyrexian Altar twice by sacrificing two Elf Warrior tokens, adding {1}{U}.
  6. The tokens leave the battlefield, triggering Nadier's first ability twice, putting two +1/+1 counters on Nadier.
  7. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite +1/+1 counters on Nadier
  - Infinite blinking
  - Infinite colored mana
  - Infinite creature tokens
  - Infinite enters the battlefield
  - Infinite leaves the battlefield[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - Deadeye Navigator is paired with Nadier.
[END OF COMBO PREREQUISITES]
assistant