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.

Gravity Gemstone
Stellar Crown 137 · Trainer · Pokémon Tool
StandardLegal
Regulation markH
RarityUncommon
Released September 13, 2024.
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Build with this card
The Pokémon deck builder checks every deck against the Standard rules, and Genny can build one around Gravity Gemstone.
Open the deck builder