Cathedral Membrane (NPH) from New Phyrexia, available at 401 Games Canada.

• Rarity: Uncommon
• Finish: Normal
• Artist: Richard Whitters
• Card Text:
  ((W/P) can be paid with either W or 2 life.)
  Defender
  When Cathedral Membrane is put into a graveyard from the battlefield during combat, it deals 6 damage to each creature it blocked this combat.