Colfenor, the Last Yew + Phyrexian Altar Combos

5 known combos featuring both cards in Commander

Infinite LTB Infinite ETB Infinite colored mana Infinite death triggers Infinite colorless mana

Combo 1 with Gutter Grime

Also requires: Gutter Grime Gutter Grime
Results: Infinite LTB · Infinite ETB · Infinite colored mana · Infinite sacrifice triggers · Infinite death triggers · Infinite storm count · Infinite creature tokens that are infinitely large
Steps
  1. Cast the creature card in your hand by paying {0}.
  2. Either that creature dies as a state-based action due to having zero toughness, or activate Phyrexian Altar by sacrificing that creature, adding one mana of any color.
  3. Gutter Grime triggers, putting a slime counter on it and creating a X/X Ooze creature token.
  4. Activate Phyrexian Altar by sacrificing the Ooze, adding one mana of any color.
  5. When the Ooze dies, Colfenor triggers, returning the creature card from your graveyard to your hand.
  6. Repeat.

Combo 2 with Doomed Dissenter

Also requires: Doomed Dissenter Doomed Dissenter
Results: Infinite death triggers · Infinite ETB · Infinite LTB
Show steps
  1. Sacrifice Doomed Dissenter to activate Phyrexian Altar, adding {B}.
  2. Doomed Dissenter's death trigger creates a 2/2 Zombie token.
  3. Sacrifice the Zombie to activate Phyrexian Altar, adding {B}.
  4. Return Doomed Dissenter to your hand using Colfenor's trigger.
  5. Repeat.

Combo 3 with Brindle Shoat

Also requires: Brindle Shoat Brindle Shoat
Results: Infinite death triggers · Infinite ETB · Infinite LTB
Show steps
  1. Sacrifice Brindle Shoat to activate Phyrexian Altar, adding {G}.
  2. Brindle Shoat's death trigger creates a 3/3 Boar token.
  3. Sacrifice the Boar to activate Phyrexian Altar, adding {G}.
  4. Return Brindle Shoat to your hand using Colfenor's trigger.
  5. Repeat.

Combo 4 with Glorious Anthem + Blisterpod + Blood Artist

Results: Infinite colored mana · Infinite colorless mana · Infinite ETB · Infinite LTB · Infinite lifegain · Infinite lifeloss
Show steps
  1. Sacrifice the Blisterpod to Phyrexian Altar for {G}.
  2. Drain target opponent for 1.
  3. Create a 1/1 Eldrazi Scion token.
  4. Sacrifice the Scion to add {G}.
  5. Drain target opponent for 1.
  6. Return Blisterpod to your hand with the Colfenor trigger.

Combo 5 with Glorious Anthem + Blisterpod + Zulaport Cutthroat

Results: Infinite colored mana · Infinite colorless mana · Infinite ETB · Infinite lifegain · Infinite lifeloss · Infinite LTB
Show steps
  1. Sacrifice the Blisterpod to Phyrexian Altar for {G}.
  2. Drain each opponent for 1.
  3. Create a 1/1 Eldrazi Scion token.
  4. Sacrifice the Scion to add {G}.
  5. Drain each opponent for 1.
  6. Return Blisterpod to your hand with the Colfenor trigger.
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