Skeletonize (ALA) from Shards of Alara, available at 401 Games Canada.

• Rarity: Uncommon
• Finish: Normal
• Artist: Karl Kopinski
• Card Text:
  Skeletonize deals 3 damage to target creature. When a creature dealt damage this way is put into a graveyard this turn, put a 1/1 black Skeleton creature token into play with "B: Regenerate this creature."