Scent of Blood-Just checking it out see if it's worth the three points
Just 1 point in Epidemic-Well I noticed when checking out rotations I was a second or two off Landing the last Obliterate so just put the one point in there to stop that.
Single target I do
PS,IT,BS,BS,Oblit - Oblit Oblit Oblit - Repeat
make sure you macro runestrike in to your primary rotation