ok let's do the research, random example:
Lv90 mandau:
DMG:49 Delay:176 Attack+35 "Mercy Stroke" Additional effect: Poison
LV 90 RDM THF BRD
Hidden effect: Occasionally deals triple damage. (Not as an aftermath)
VS
Twashtar (lv90):
DMG:48 Delay:176 DEX+15 "Rudra's Storm" Aftermath: Occ. deals double damage
LV 90 THF BRD DNC
I'm failing to see how the former is inferior to the latter, unless the empyrean weaponskill is better than the relic one. As far as that goes, I don't know, because I've never seen Rudra's Storm.
The empyrean occasionally deals double damage as an aftermath. The relic weapon occasionally deals 3x damage, without aftermath.
For the relic weapons with accuracy + instead of attack+, I'll buy the emps being better. But I'm pretty confident mandau > Twashtar. If you say I'm wrong, please explain why, I'd genuinely like to know.
Anyway, I still want to know more about the achievements, as thats what really brought me to this thread.