Void Staff?
Can we do for Void Staff what we did for Last Whisper? Maybe option one lets them do +% health damage to tanks Option two lets them do more flat penetration
Right now, many mages can't even access the 7% magic pen in the ferocity tree, because it's simply ass on some of them to take deathfire touch. Would be nice to let mages have some more variety too. Right now, it seems like we have about two real build path options (many fringe cases where champions only have 1), while ADs have quite a bit more for their keystones.
This needs to be addressed sooner than later, imo, because mages are completely out classed right now.