Haunted Crossroads + Matter Reshaper + Phyrexian Altar

B identity

Commander legal

The 3 combo pieces

How to execute it

  1. Sacrifice Matter Reshaper to Phyrexian Altar, adding {B}.
  2. With Matter Reshaper's trigger on the stack, activate Haunted Crossroads by paying {B}, putting Matter Reshaper from your graveyard on top of your library.
  3. Resolve Matter Reshaper's trigger, revealing Matter Reshaper on top of your library, and putting it on the battlefield.
  4. Repeat.

What the combo produces