Lucien is the main antagonist of Mario Tennis Aces. It's a powerful sentient racket that has the ability to control people. Several years ago prior, it was discovered by king named King Bask who wished to keep it for himself after hearing of its legend. However, once the racket was unleashed, it destroyed the entire kingdom. King Bask stripped it from it's power and divided it into five power stones while sealing it in the Temple of Bask to prevent it from causing any further destruction, but the seal eventually expired over the years and easily possessed Wario and Waluigi due to their greed motivation.

Classification: Tennis Racke

Powers and Abilities: Superhuman physical characteristics, mind manipulation, possession, energy manipulation, energy projection, aura, darkness manipulation, air manipulation, electricity manipulation, weather manipulation, forcefield creation, afterimage creation, time manipulation, creating shockwaves

Attack Potency: Galaxy level (Fought with Mario and is capable of inflicting damage on him)

Speed: Massively FTL+(Capable of reacting to and keeping up with Mario)

Lifting Strength: Class G

Striking Strength: Galaxy level (Capable of clashing attacks with Mario)

Durability: Galaxy level(Tanked solid strikes from Mario), higher with forcefields

Stamina: Limitless (Has an endless supply of energy)

Range: Several meters with ranged attacks

Standard Equipment: Power Stones

Intelligence: Unknown, but it appears to be very manipulative

Weakness: It needs all five power stones to be in full power.