So i was wondering: teleporting big things is kinda a big deal. Dalaran took a bunch of archmages. During war of the ancients it took the well of eternity + demon soul to open a portal for sargeras, a planet sized being. During nighthold it took guldan the nightwell, amantuls eye and weeks/months of work to open a portal to argus strong enough for sargeras soul to come through.
But then Illidan can just use some fancy stone to teleport an entire planet in an instant, HOW did he manage that? How is that stone so powefull?
And, since that stone used to be burning legion property untill very recently, why didn't the legion use it against us?