Re: New Guardian
At 65 I've been doing skirmishes in OP with a sage pet. If I had to reroll, I'd change the sage to an archer. Unless you ratchet up the tier and the relative level, you're in no danger of dying in OP mode in a skirmish. If you do raise the tier and/or level, then I suppose a healer may become necessary, but so far I have found choosing defensive training traits combined with a pet that is huge DPS will mow through anything quickly enough to win.
Steppy, Hobbit Burglar
Founder and Leader
Light of Telperion
A Kinship on Silverlode