From Bulbapedia, the community-driven Pokémon encyclopedia.
Pike Queen Lucy (Japanese: チューブクイーン アザミ, Tube Queen Azami; French: Charline; German: Lotte; Italian: Fortunata; Spanish: Fortunia) is the Frontier Brain and law-keeper of the Battle Frontier's Battle Pike.
Lucy trampled flowers and braved storms to reach her position. She isn't one for idle chatter, preferring to go right into battle. When she's defeated, she prefers her opponent to hurry and move along. The Luck Symbol is awarded to those able to defeat Lucy's Pokémon.
In the games
In Pokemon Emerald, Lucy has these Pokémon when you fight her for the silver Luck symbol: