Board Thread:Bug Reports/@comment-5985220-20150414201204/@comment-5985220-20150415002434

I looked into it a bit and this is probably because when you changed Slow Aura from affecting Move Speed to Attack Speed, you didn't change the check to see if Move Speed was greater than 0 to Attack Speed. (So people with two heavy armor items on can have attack speed below 0 if they get hit by Slow Aura.) See the highlighted section in the attached screenshot:

Interestingly enough, it also looks like Slow Aura might affect the user's own team. The only character using it in the original screenshot/video (#9) is on the Blue Team, but the affected people (#3, #18, Skeleton) are also Blue.