Composer of Spring + Endless Cockroaches + Phyrexian Altar + Rancor

Mana needed: {G}

BG identity

Commander legal

The 4 combo pieces

What must be in place

You control at least six enchantments.

How to execute it

  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.

What the combo produces