If two champions on my team have bought liandry's, and attack the same champion, will its passive %hp dmg stack? Or is only one passive %hp dmg applied?
Honestly, I'm not positive.
If I had to guess I would say it does not simply because you do not get extra burn for hitting them with more than one spell at a time.
Z The Slayer
Nope, it does not. Any new procs will only refresh the duration and modify it's spell penetration from the new attacker.
© 2014 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.