I have just started playing arena with my gf in 2s. She plays a resto druid and I play frost DK. First thing I notice when we start is that Army of the Dead cannot be used in arena. I figure this is ok as it appears to have an unfair advantage. I also understand that spells like Time Warp and Bloodlust are also not usable. I can also see why this is. What I don't get is that if I cannot use AotD then why can hunters use Stampede?? It really makes no sense.
So yeah. Seems weird to me