05-19-2012, 08:18 AM
A distraction (Templar, friend in multiplayer) is definitely the easiest way to Ray of Frost something. Freeze or Stun effects also help, as does Ray of Frost->Knockback when close->Ray of Frost, though it is rare for something to last that long. When I see a Champion group, I use Shock Pulse to clear out any riff-raff in the area, then try to find a good distance from them. With either of the first two Runes you should be able to kill the first one before it can reach you. If there is a distraction, immediately turn to the second; if not, kite first. Rinse, repeat. I can take out a group of three Champions easily with Ray of Frost. If there are two Champion groups, or a Champion Group and a Rare, I need to pull out more of my tools.
May the wind pick up your heels and your sword strike true.