I'm completely new to MMOs... and I find myself totally sucking at being a tank. No matter what I seem to do, I can't draw the agro of the enemies. I use flash, shield lob, shield bash, savage blade, riot blade... I'm a level 20 btw. Nothing seems to draw the attention. It's causing the party I am in always to suffer and then as one could imagine begins the berating of my skills and how I suck at tanking. Please someone tell me what I'm doing wrong?