Hello.
I stumbled across this video http://www.youtube.com/watch?v=wLVCk...el_video_title where a warlock exploited the debuff you get from Vexallus (Magisters Terrace) by making his Felguard kill the adds until it got a 500% damage bonus and dismissed it until he could summon it in the arena.
Appearently you COULD use the pet with the debuffs in arena, raids and battlegrounds.
Sadly, Blizzard took down the servers for a hotfix.
Maybe old news from some people but I thought it would be funny to post it here.