Composer of Spring + Phyrexian Altar Combos

4 known combos featuring both cards in Commander

Infinite death triggers Infinite ETB Infinite LTB Infinite sacrifice triggers Infinite storm count

Combo 1 with Enduring Renewal

Also requires: Enduring Renewal Enduring Renewal
Results: Infinite colored mana · Infinite death triggers · Infinite ETB · Infinite LTB · Infinite sacrifice triggers · Infinite storm count
Steps
  1. Cast the enchantment creature by paying its mana cost.
  2. When the creature enters the battlefield, Composer of Spring triggers.
  3. Holding priority, activate Phyrexian Altar by sacrificing the enchantment creature, adding one mana of any color.
  4. When the enchantment creature dies, Enduring Renewal triggers, returning the enchantment creature to your hand from your graveyard.
  5. Resolve the Composer of Spring trigger from step 2, putting the enchantment creature onto the battlefield from your hand.
  6. Repeat from step 2.

Combo 2 with Rancor + Dawn Evangel

Results: Infinite death triggers · Infinite ETB · Infinite LTB · Infinite sacrifice triggers · Infinite storm count
Show steps
  1. Cast Rancor by paying {G}, attaching it to Composer of Spring.
  2. When Rancor enters the battlefield, Composer of Spring triggers.
  3. Holding priority, activate Phyrexian Altar by sacrificing Composer of Spring, adding {G}.
  4. When Composer of Spring dies, Rancor and Dawn Evangel trigger.
  5. Resolve the Rancor trigger, returning it to your hand from the battlefield.
  6. Resolve the Dawn Evangel trigger, returning Composer of Spring to your hand from the battlefield.
  7. Resolve the Composer of Spring ability from step 2, putting Composer of Spring onto the battlefield from your hand.
  8. Repeat.

Combo 3 with Rancor + Immortal Phoenix

Results: Infinite death triggers · Infinite ETB · Infinite LTB · Infinite sacrifice triggers · Infinite storm count
Show steps
  1. Cast Rancor by paying {G}, attaching it to Immortal Phoenix.
  2. When Rancor enters the battlefield, Composer of Spring triggers.
  3. Holding priority, activate Phyrexian Altar by sacrificing Immortal Phoenix, adding {G}.
  4. When Immortal Phoenix dies, it and Rancor trigger.
  5. Resolve the Rancor trigger, returning it to your hand from the battlefield.
  6. Resolve the Immortal Phoenix trigger, returning it to your hand from the battlefield.
  7. Resolve the Composer of Spring ability from step 2, putting Immortal Phoenix onto the battlefield from your hand.
  8. Repeat.

Combo 4 with Rancor + Endless Cockroaches

Results: Infinite death triggers · Infinite ETB · Infinite LTB · Infinite sacrifice triggers · Infinite storm count
Show steps
  1. Cast Rancor by paying {G}, attaching it to Endless Cockroaches.
  2. When Rancor enters the battlefield, Composer of Spring triggers.
  3. Holding priority, activate Phyrexian Altar by sacrificing Endless Cockroaches, adding {G}.
  4. When Endless Cockroaches dies, it and Rancor trigger.
  5. Resolve the Rancor trigger, returning it to your hand from the battlefield.
  6. Resolve the Endless Cockroaches trigger, returning it to your hand from the battlefield.
  7. Resolve the Composer of Spring ability from step 2, putting Endless Cockroaches onto the battlefield from your hand.
  8. Repeat.
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