Love Princess

That one teleportation gimmick that Twilight had triggered while trying to grab the Crystal Heart was a special case though.. That was an already existing trap and who knows how long ago it was created, or how much effort it took. He already had control of the Crystal Empire so there was enough time to construct a trap to keep it in place. And considering the Mane 6 just dug right on out of their trap suggests it is quite limited.. How much it is limited is not known though..