I'm making a cold sorc for hardcore ladder. She's going to "solo" with only one other character (who will be a bowzon if it matters). I've seen so many people going blizzard. Is the only reason for this the synergies? Should I go blizzard or orb? What supporting skills are good? I plan on having only cold besides one in static and *maybe* one in warmth.

What is it they say about silence being golden?