Downsize (RTR) from Return to Ravnica, available at 401 Games Canada.

• Rarity: Common
• Finish: Normal
• Artist: Ryan Pancoast
• Card Text:
  Target creature you don't control gets -4/-0 until end of turn.
  Overload 2U (You may cast this spell for its overload cost. If you do, change its text by replacing all instances of "target" with "each.")