I think about the passive mage expert from storm calling. On my front bar it shows correctly 6 percent for 3 mage class abilities slotted. On my backbar I have 3 other mage abilities slotted and additional the storm calling ultimate. But it shows the same 6 percent on the backbar. Before the wolfhunter update it was 8 percent for 4 abilities. Buggy ? I am playing on the xbox eu server.