I don't know if many of you are familiar with Smite, but I feel like Karma (thematically) can operate in a way similar to Hel. Light/Dark feel to it.
For instance: All abilities in Light form perform a supportish ability- Heal, shield, speed etc. All Abilities in Dark mode do damage, cc, slow etc.
Might help her out.
© 2015 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.