Board Thread:General Discussion/@comment-4441317-20180715062110/@comment-31908363-20180717113753

Fire Manipulation is the more effective option destructively, but Smoke Manipulation could be used to form smoke that allows its user to stand on it or lift the user up in the air (this is provided that there is enough smoke and smoke kinetic energy to do this though).

Both could be used to shield the user though what they can shield the user from depends on certain factors. Both can allow for suffocation and some other stuff.