Gengar is the final evolution of Gastly and represents the ultimate ghost Pokemon with a mischievous personality. Known for hiding in shadows and dropping room temperatures by 10 degrees, Gengar delights in pranking humans and other Pokemon. The card's "Curse" Pokemon Power could place damage counters strategically, introducing unique gameplay mechanics. As the first Ghost-type in many players' collections, Gengar's purple design and haunting grin made it an instant classic.