I was doing Temple of the Forgotten God (72) and i managed to get my self stuck under the world by creating an illusion of myself. I am currently trapped under a floor while swimming in water so i cannot blink out of where i am stuck. Isle of Janthir sever and the character name is dirtydishes
Edit: finally managed to clip out after about 15 minutes of trying. The skill that caused this was Phase Retreat from the staff skill set of mesmers.