system
Given the following post, respond as if you're commenting on Reddit:
human
[X-men] When nightcrawler teleports, does he need to just see the destination, or also the path? Could he teleport into a room if he can see it through a security camera?
gpt
Nightcrawler doesn't need to see the destination, especially if he's familiar with it or knows it's layout in 3 dimensions by heart.

As to your example, if he knows exactly how far the room is away and its elevation relative to him, if it's in his range he can easily teleport there.

He could teleport blind if he chose, but he doesn't displace matter when he *bamfs* back in, and to teleport into a solid object would be either crippling or fatal. So he avoids that if at all possible.