This ability, in my last game, had a coefficient of 0.05 for AD only. Leap Strike was using the correct coefficient of AD, but the Empower was with this problem.
Please take a look at it.
© 2013 Riot Games, Inc. All rights reserved. Riot Games, League of Legends and PvP.net are trademarks, services marks, or registered trademarks of Riot Games, Inc.