I truly hope not. I understand it was my mistake, but given it's a "quest" item, I'd think I could grab it again? Especially given how difficult it's going to be to get 350 light to get the chance to obtain one again..
Go to Kepler
You can focus said weapon.
Meaning it will be a very high chance of a drop.
You will not need to be 350.
Fabled has chance to drop a tier 4 as well.
Per reports…
Fabled has a “chance”.
Tier 3 and tier 4.
Obviously a lower chance, but possible.
Mythic pushes the chances up…
But mythic is rough if you are not above 200.
250/270 will be the sweet spot to farm it.
I wish ya luck…
Those things are frustrating…
But with the focusing implementation, it is not nearly as bad.