Crystal Shard
As long as Crystal Shard is attached to a Pokemon, that Pokemon's type is Colorless. If that Pokemon attacks, discard this card at the end of the turn.
Card rule
Attach Crystal Shard to 1 of your Pokémon that doesn't already have a Pokémon Tool attached to it. If that Pokémon is Knocked Out, discard this card.
Crystal Guardians