GYM Leader Clair Finally, at the northern end of the lava-filled gym, you'll find Gym Leader Clair. Blackthorn City Gym is the location where the Gym Leader Clair resides, who uses Dragon-type Pokémon.Even if defeated, the player doesn't receive her Rising Badge unless he/she goes into the Dragon's Den and does her request. An Ace Trainer will prevent access to the Gym itself until the player has at least seven of the eight Johto Badges and has defeated Team Rocket at the Goldenrod Radio Tower, though there is no legitimate way to access Blackthorn with less than seven Badges. In Generation II, the Gym has two floors.On the upper floor, the player has to use the HM Strength to move boulders to make a bridge on the bottom floor.