1.get into Strand of the Ancients battlegrounds.(que rbg)
2.you have to die before battle start otherwise it wont work.(tp to an altitude of 1000 meters and falling with Hitchhiker's hack).Dont click Release,wait a few seconds,now u was bug.cant be attack and cant move.
3.wait for the battle start,turn on and turn off Freeze Z in Hitchhiker's hack.now u can move to Demolisher and right click it.
or just tp to the Demolisher and right click it if u r lazy dont want to walk.
for defensive side click on Demolisher. just change faction horde or ally in Hitchhiker's hack.
4.leave battleground.