Useful cross job abilties?

[AceofRains]

Second wind, cure, and protect are a must have solo IMO. For solo I kinda don't recommend bloodbath, I think it's a was of a slot, but then again it negates the HP loss when I use blood for blood.
Hmm I haven't played GLD really but I think some MRD skills would be good
Get invigorate for sure so you can pull of more combos without stressin on TP. (lnc skill)
Actually on archer I use necrogenesis and aero, so I can try to inflict DoT and heal my self.
When solo i perform my actions kinda like in phases.

Phase 1 opening attack is stack blindside invigorate ect ect
And then launch attack from behind, for me it usually takes out like quarter to half health on
Somthing my level.

Phase 2 lay on the combos

Phase 3 is when I need to heal and buff up
Protect should always be on
Feather foot always good during this phase so your heals arnt chipped down right away
Then I pop second wind
If I need more health in I hit necrogenesis and aero
And and if I'm not set on healing by then I cure

Then it's back to phase one, if cooldowns are set
Or phase two, it's a situational judgement decision.

That's how I play tho :/

But i hope that helps ^^