PlusPower - 80/95 - Uncommon from HS Unleashed, available at 401 Games Canada.

• Rarity: Uncommon
• Finish: Normal
• Artist: Takashi Yamaguchi
• Card Text:
  Attach PlusPower to 1 of your Pokemon. Discard this card at the end of your turn. If the Pokemon PlusPower is attached to attacks, the attack does 10 more damage to the Active Pokemon (before applying Weakness and Resistance).