Again, if you can imagine it and it relates to your power, go for it. Just use your judgement. If it seems to powerful to do when you just learned about your powers, then it probably is. If it seems too powerful, but your character knows how, then they will suffer some extreme backlash. I know you're a great RPer, one of the best I know. You know what is right and what isn't. I think you'll do fine. In anycase, you are accepted, welcome. Look forward to RPing with you again. :D