Anyone knows exactly which weapons can be obtained with lucky coins?

[Hrith]

You fail so much, WN, you should stop ridiculing yourself so, while you still can.

90% of the weapons you listed aren't good weapons, and easily outranked by shots and slicers.

If you really think S-Rank Slicer and its 35 ATA makes it useless, you shouldn't play with me, or even just see me play, it would make you cower in shame.

And shot-type weapons are definitely the best for PW#4, slicers aren't as good, let alone needles.