It's even more worthless than it was in season two. Seriously.
Make it do something useful like extend ward placement range.
+10 seconds = worth a mastery point
+10% duration (18 seconds) = definitely worth a mastery point
TOO BAD, HUH
© 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.