Phyrexian Altar + Sage of Hours Combos

1 known combo featuring both cards in Commander

Infinite LTB Infinite ETB Infinite colored mana Infinite sacrifice triggers Infinite death triggers

Combo 1 with Vhal, Candlekeep Researcher + Haunted One + Faces of the Past

Results: Infinite LTB · Infinite ETB · Infinite colored mana · Infinite sacrifice triggers · Infinite death triggers · Infinite colorless mana that can't be spent to cast spells from your hand · Infinite untap of all Humans · Infinite power for certain creatures until end of turn · Infinite untap of all Wizards
Steps
  1. Activate Vhal by tapping it, adding an amount of {C} equal to Vhal's toughness that cannot be spent to cast spells from your hand.
  2. Haunted One triggers, causing Humans and Wizards you control to get +2/+0 and to gain undying until end of turn.
  3. Activate Sage of Hours by removing all +1/+1 counters from it.
  4. Activate Phyrexian Altar by sacrificing Sage of Hours, adding one mana of any color.
  5. When Sage of Hours dies, its undying ability and Faces of the Past trigger.
  6. Resolve the Sage of Hours trigger, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
  7. Resolve the Faces of the Past trigger, untapping all Humans and Wizards.
  8. Repeat.
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