So inside of EOTS there is a pillar outside of the mage tower. Simply run up towards it and aim at it. Then hit your blink button. This will cause you to blink inside of a pillar where no one but a caster can hit you. That is if they can find you first. Also, you can sit in there and attack them. Easy way to go ahead and kill people without them seeing you. Or just hold the point and be a minor nuisence. (Video incoming got to figure out how to post it).