Blackthorn City Gym

The towns Gym Leader Clair uses dragon type pokemon. Her pokemon as following

Dragonair Lv 38

Dragonair Lv 38

Gyarados Lv38

Kingdra Lv 41

To defeat her use Ice and Dragon Types

Rematch

Dragonair Lv 52

Gyarados Lv 56

Aerodactyl Lv 52

Charizard Lv 52

Kingdra Lv 56

Dragonite Lv 60