Stephan's Liepard is the third Pokemon that Stephan was revealed to have and made it's debut in Lost at the League!
Liepard was sent out by Stephan in Lost at the League! and it is revealed that it did fight in Strong Strategy Steals the Show! against Ash's Krookodile. It collided with Ash's Krookodile's Dragon Claw with Shadow Claw and Stone Edge against Shadow Ball, but after using Liepard's Double Team, Stephan had the advantage. Liepard kept attacking Krookodile with Shadow Claw, Shadow Ball, and Hyper Beam. Liepard started to collide with Krookodile again. After Liepard collided with Krookodile's 3rd Dragon Claw, Liepard was defeated, leaving Stephan with 2 Pokemon, when Ash still has all three.