Not sure if this is new or not, But if it isn't hope it helps you guys out not to much use i don't think but i think it can be fun :P Basically you can use demonic gate to teleport just outside of walls by doing it in cracks As show in the video below, Tested and works! Hope those picture gave a clear enough understanding of how to do it! if not let me know first time posting :P
http://yuri999.deviantart.com/art/Ex...3Ayuri999&qo=2
http://yuri999.deviantart.com/art/ex...3Ayuri999&qo=1
After you have teleported, Dont move just fly up and you are out :P
http://yuri999.deviantart.com/art/as...3Ayuri999&qo=0
Last but not least a video of me doing it i just made, So you guys know it does infact work, Pay attention to where my green gate is set, I have it set on a certain brown mark!
http://www.youtube.com/watch?v=Z9K4w3M-yMQ