Rarest XBM skillbook in GMS?

What is the rarest MM skillbook in the whole of gms?

for MSEA, it would be freezer 20 ( rare as hell and costs upwards of 100m in Cassiopeia) followed by sniping 20 and piercing 20

Frostprey 20 and 30 (just 20 after time temple) used to be extremely rare, but they became common after gachapon boxes. I'd have to say blind 20. MW 30 is the obvious answer, but I doubt you'd count that.

Frostprey 20 and 30 (just 20 after time temple) used to be extremely rare, but they became common after gachapon boxes. I'd have to say blind 20. MW 30 is the obvious answer, but I doubt you'd count that.

i have like 5 blind 20s just sitting on my marksman's mule.

Another question to those who have gone on zakum runs. how often does sniping 20 drop?

i know frostprey 20 drops from one of those red monsters. is it the qualm or the monks

this brings me to, what drops blind 20 i need them, and the 30 one too whle we at it....

I think skelys drop Blind: 20 (cant check my monster book right now) and according the 4th job thread Blind 30 is dropped by Griffey

I think skelys drop Blind: 20 (cant check my monster book right now) and according the 4th job thread Blind 30 is dropped by Griffey

oh yeah it is from skelosaurus, how come i never see any then?

People probably toss them thinking they are useless.I think I got mine for 100k in the fm...I cant recall seeing another one, not that I've been looking.


I know people used to toss Booster 30 after Zak...took me ages to get that.