[[Digivolve] [Gummymon]/[Terriermon]: Cost 0]
[Your Turn] When this Digimon would digivolve into a card with [Gargomon] or [Rapidmon] in its name, reduce the digivolution cost by 1.
[Your Turn] While this Digimon has [Gargomon] or [Rapidmon] in its name, it gains [Piercing].