Why dont yoj kill all the enemies but instead always drag some with you? And why do you consider this hit and run and not facetanking? Sorryuf these questions are stupid, Im still new to this game^^
after 2 full duration of merk, mobs are already at a very low hp. i just move a bit away and cast one more merk and i assume they will die when they follow. you can see i check it once in a while and it works 99% of the time.