Koromon - EX9-001 - Common from EX-09 Theme Booster: Versus Monsters, available at 401 Games Canada.

• Rarity: Common
• Finish: Normal
• Artist: Iori Sunakura
• Card Text:
  Inherited Effect: [When Attacking] [Once Per Turn] This Digimon with face-down digivolution cards may digivolve into a [Ver.1] trait Digimon card in the hand with the digivolution cost reduced by 1.