with this champion u would want to use e first because if u are doing a 1v1 with anyone one u will get EXTRA damage in before they do anything to you. when im a lvl 18 this is the order i use my atacks in, 1-e, 2-q, 3-w, 4-e, 5-q.. and so on if you are about to die then use your r attack then w then your q to get away.