Stellar Crown · #137
Gravity Gemstone is a Trainer card from the Stellar Crown expansion of the Pokémon Trading Card Game (card #137, Uncommon).
As long as the Pokémon this card is attached to is in the Active Spot, the Retreat Cost of both Active Pokémon is Colorless more.
You may attach any number of Pokémon Tools to your Pokémon during your turn. You may attach only 1 Pokémon Tool to each Pokémon, and it stays attached.