True, but Twilight is an Alicorn. Her magic is more powerful than it was when she teleported herself, Spike, Rarity and Rainbow Dash back to Equestria from the Dragon Lands when she was still a unicorn. I think that even back then she could have used the spell again soon after, unless they were already so close to Ponyville that she didn't bother.



Yes, I know we've seen Alicorn Twilight get tired after using magic, but she used a lot more spells than just one teleportation spell when she fought Starlight. Of course, I don't know how much power teleportation drains out of the user and it's clearly a difficult spell, but I'd like to think that Alicorns are able to use it a good few times before needing to recharge. Heck, just look at Flurry Heart!