Zodiak Weapons : Are you casual content or hardcore content?

[Felis]

He implies that Coil is not a grindfest, rather it's a skill check. Althought it does take practice, there's no forced grind like 13500 myth for books. The upgrade items are also 100% drops so there's no RNG involved.

That means every weapon drop at once, with no RNG involved in the loot? Sure, 1 drop is guaranteed, but it is not guaranteed that it is also the right drop.