Just found out this ''bug/ exploit'' can be used in arena also.
At level 15 druids can choose from 3 talents, one of them beeing [Displacer Beast] -> (teleports druid 20 yrds forward and activates cat form & prowl (stealth)
It's like a rogue's vanish, players cannot see you BUT you wont lose aggro on NPC's.
I discovered that when a hunter has hes pet send after the druid and the druid uses [Displacer Beast] the hunter's pet will keep following the druid but wont attack.
So for hunters in BG's / arena. Have your pet send after the druid at all times. IF the druid has the talent and uses it, your pet will give away its hiding place
Hope I could help some of you![]()