Honestly i mostly want it for the following reasons
1. Dramatic  entrances and exits
2. Minor use in combat
3. A way to escape a situation (If needed)
5. Easier to move around and get to home base w/out being followed

Honestly though, emphasis on the [i] [b]Minor[/b][/i] in reason 2 I don't really wanna use it combat that much because it would make the whole fight cheap and not fun, I would be fine if I just straight up not allowed to use it in combat due to 'Concentration' requirements