Ashnod's Altar + Urza, Lord High Artificer Combos

2 known combos featuring both cards in Commander

Infinite blue mana Infinite colorless mana Infinite creature tokens Infinite death triggers Infinite ETB

Combo 1 with Nim Deathmantle

Also requires: Nim Deathmantle Nim Deathmantle
Results: Infinite blue mana · Infinite colorless mana · Infinite creature tokens · Infinite death triggers · Infinite ETB · Infinite LTB · Infinite sacrifice triggers · Exile your library · Cast all spells in your library · Infinite creature tokens that are infinitely large
Steps
  1. Activate Ashnod's Altar by sacrificing Urza, adding {C}{C}.
  2. When Urza dies, Nim Deathmantle triggers, causing you to pay {4} to return Urza from your graveyard to the battlefield and attach Nim Deathmantle to it.
  3. When Urza enters, it triggers, creating a creature token.
  4. Activate Ashnod's Altar by sacrificing a creature token, adding {C}{C}.
  5. Repeat.
3,884 decks Colorless View on Commander Spellbook →

Combo 2 with Deadeye Navigator

Also requires: Deadeye Navigator Deadeye Navigator
Results: Infinite LTB · Infinite ETB · Infinite sacrifice triggers · Infinite death triggers · Infinite colorless mana · Infinite creature tokens · Infinite blue mana · Infinite blinking · Exile your library · Cast all spells in your library
Show steps
  1. Activate Urza by paying {1}{U}, blinking it.
  2. When Urza enters the battlefield, it and Deadeye Navigator's soulbond ability trigger.
  3. Resolve the Deadeye Navigator trigger, repairing it and Urza.
  4. Resolve the Urza trigger, creating a 0/0 Construct artifact creature token.
  5. Activate Urza's first ability by tapping the Construct, adding {U}.
  6. Activate Ashnod's Altar by sacrificing the Construct, adding {C}{C}.
  7. Repeat.
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