In pvp, if defending Kreel applies the Backsplash effect to my Augustus, my Augustus HAS to attack my taunting Furnace. All other options are invalid. After targeting Furnace, Augustus then attacks an opponent's defender at random. My assumption is this had to do with the possible purge effect of the epic should it trigger, but the fact that the epic isn't triggering on that attack and the random choice Augustus makes on who to attack severely disrupts strategy and harms the PvP experience makes me think this is a bug. In any other situation Augustus isn't forced to attack the hero with a buff incase the epic triggers, so why here.