Leyline of Singularity + Phyrexian Altar Combos

9 known combos featuring both cards in Commander

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

Combo 1 with Ratadrabik of Urborg

Also requires: Ratadrabik of Urborg Ratadrabik of Urborg
Results: Infinite colored mana · Infinite death triggers · Infinite ETB · Infinite LTB · Infinite sacrifice triggers
Steps
  1. Activate Phyrexian Altar by sacrificing any other creature you control, adding one mana of any color.
  2. When the creature dies, Ratadrabik triggers, creating a token copy of the creature that is a 2/2 legendary Zombie in addition to its other types.
  3. Repeat.

Combo 2 with Jedit Ojanen, Mercenary

Results: Infinite death triggers · Infinite ETB · Infinite LTB · Infinite sacrifice triggers
Show steps
  1. Cause a creature to enter the battlefield under your control, which will be legendary due to Leyline of Singularity.
  2. Jedit triggers, causing you to pay {G} to create a 2/2 Cat Warrior creature token that is legendary due to Leyline of Singularity.
  3. The Cat Warrior enters the battlefield, triggering Jedit.
  4. Holding priority, activate Phyrexian Altar by sacrificing the Cat Warrior, adding {G}.
  5. Resolve the Jedit trigger, causing you to pay {G} to create a 2/2 Cat Warrior creature token that is legendary due to Leyline of Singularity.
  6. Repeat from step 3.

Combo 3 with Yomiji, Who Bars the Way + Ornithopter

Results: Infinite colored mana · Infinite death triggers · Infinite ETB · Infinite LTB · Infinite sacrifice triggers · Infinite storm count
Show steps
  1. Activate Phyrexian Altar by sacrificing Ornithopter, adding one mana of any color.
  2. Yomiji triggers, returning Ornithopter from your graveyard to your hand.
  3. Cast Ornithopter by paying {0}.
  4. Repeat.

Combo 4 with Yomiji, Who Bars the Way + Kobolds of Kher Keep

Results: Infinite colored mana · Infinite death triggers · Infinite ETB · Infinite LTB · Infinite sacrifice triggers · Infinite storm count
Show steps
  1. Activate Phyrexian Altar by sacrificing Kobolds of Kher Keep, adding one mana of any color.
  2. Yomiji triggers, returning Kobolds of Kher Keep from your graveyard to your hand.
  3. Cast Kobolds of Kher Keep by paying {0}.
  4. Repeat.

Combo 5 with Yomiji, Who Bars the Way + Crookshank Kobolds

Results: Infinite colored mana · Infinite death triggers · Infinite ETB · Infinite LTB · Infinite sacrifice triggers · Infinite storm count
Show steps
  1. Activate Phyrexian Altar by sacrificing Crookshank Kobolds, adding one mana of any color.
  2. Yomiji triggers, returning Crookshank Kobolds from your graveyard to your hand.
  3. Cast Crookshank Kobolds by paying {0}.
  4. Repeat.

Combo 6 with Yomiji, Who Bars the Way + Phyrexian Walker

Results: Infinite colored mana · Infinite death triggers · Infinite ETB · Infinite LTB · Infinite sacrifice triggers · Infinite storm count
Show steps
  1. Activate Phyrexian Altar by sacrificing Phyrexian Walker, adding one mana of any color.
  2. Yomiji triggers, returning Phyrexian Walker from your graveyard to your hand.
  3. Cast Phyrexian Walker by paying {0}.
  4. Repeat.

Combo 7 with Yomiji, Who Bars the Way + Shield Sphere

Results: Infinite colored mana · Infinite death triggers · Infinite ETB · Infinite LTB · Infinite sacrifice triggers · Infinite storm count
Show steps
  1. Activate Phyrexian Altar by sacrificing Shield Sphere, adding one mana of any color.
  2. Yomiji triggers, returning Shield Sphere from your graveyard to your hand.
  3. Cast Shield Sphere by paying {0}.
  4. Repeat.

Combo 8 with Yomiji, Who Bars the Way + Memnite

Also requires: Yomiji, Who Bars the Way Yomiji, Who Bars the Way Memnite Memnite
Results: Infinite colored mana · Infinite death triggers · Infinite ETB · Infinite LTB · Infinite sacrifice triggers · Infinite storm count
Show steps
  1. Activate Phyrexian Altar by sacrificing Memnite, adding one mana of any color.
  2. Yomiji triggers, returning Memnite from your graveyard to your hand.
  3. Cast Memnite by paying {0}.
  4. Repeat.

Combo 9 with Yomiji, Who Bars the Way + Crimson Kobolds

Results: Infinite colored mana · Infinite death triggers · Infinite ETB · Infinite LTB · Infinite sacrifice triggers · Infinite storm count
Show steps
  1. Activate Phyrexian Altar by sacrificing Crimson Kobolds, adding one mana of any color.
  2. Yomiji triggers, returning Crimson Kobolds from your graveyard to your hand.
  3. Cast Crimson Kobolds by paying {0}.
  4. Repeat.
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