Important facts to answer your question include but are not limited to.

1.) Is your goal to kill (high pkill count), fight(mix it up with a wide variety of opponents), or survive(never die)?
2.) Do you have knowledge of ways to offset your weaknesses without consuming edges/legacies/specs (like being good at running or knowing high end gear)
3.) What is the current landscape of other active builds (don't need to cover a mental vuln if nobody is playing a bard for instance)