User blog comment:Emptylord/Season 3 - PBE Patch Notes/@comment-50.148.105.185-20121126152614/@comment-5490997-20121128184832

I think aura's are divided on who they affect. Defensive aura's are the ones that buff your allies, offensive ones are the aura's that debuff enemies.

Iron Solari's old aura passive will fit in the defensive category, but that's removed on the PBE so it doesn't matter. Iron Solari's active is technically not an aura and thus doesn't adhere to any of the rules for aura's, so I assume the range of that hasn't been changed.