Koga's Grimer - 78/132 - Common - Unlimited Edition Tweet Out of stock. Wishlist Details Set: Gym Challenge Card Number: 78 Rarity: Common Illustrator: Ken Sugimori Retreat Cost: 1 Weakness: 1 HP: 50 Stage: Basic Card Type: Grass Name: Koga's Grimer Finish: Regular Edition: Unlimited Manufacturer: Wizards of the Coast