PlusPower is a Trainer card.
PlusPower sits at 84/102 in Base, position 84 of 102. Before it is 83 Maintenance, and after it is 85 Pokémon Center. The set belongs to the Base series. It was released on January 9, 1999. The printed size is 102, and the checklist is the same length. The listed rarity is Uncommon.
The card text says: Attach PlusPower to your Active Pokémon. At the end of your turn, discard PlusPower. If this Pokémon's attack does damage to the Defending Pokémon (after applying Weakness and Resistance), the attack does 10 more damage to the Defending Pokémon.
The illustrator line reads Keiji Kinebuchi. I count 212 other cards in the catalog with that illustrator.
Base set binder is where a full Base set goes. This card fills one slot there. I still need this card.