I !@#$ing love this skill. I'm sure there are other generators or combos that will out damage this skill, but the utility of this skill is too great for me to ignore. To clarify: Being able to attack at range, thus avoiding taking hits.
Example: Watched a dude rush to SK and was under geared for the fight. He got owned while using FoT. He switches to DR, and SK dropped with ease.
As an added bonus, it also makes it more difficult for ranged enemies to try and gain distance on you. There have been a few games where I'd dash in on a skeletal summoner, and it would die before it got out of range of DR.
%^-*. I love this skill.