Ok yesterday i managed to win my first Master artficer. (with a very good group)

On my fisrt run i managed to pull (alchemical) a) a Repeating Xbow b) a rapier
and i m not very sure what to chose as upgrade.

(For the sake of the discussion im a Mechanic rogue switching between 2weapon fighting and Ranged)

I already got a T3 GS Rapier of radiance and a T2 Epic Cutthroat Small blade.

So for the Xbow i decided to do a Aerytrikos bashing machine: FlammeTouched Plating, WaterT1 and WaterT2 (with Silver bolts)

but no idea what to do with the rapier. maybe someting to deal with unsneakable mob, a pure dps weapon or a construct beater...

if you have any suggestion, please share

thank you