Seriously, the hell? I've been farming the nekker lake in act II forever, but no greater mutagens yet.
EDIT: Bad enough they don't even give me xp. Sigh. All lessers, all the time. --- Grammar is FreeWare. You can freely use and distribute it. Grammar is NOT OPEN SOURCE. You can't alter or modify it in any possible way.
people have said that it helps alot to get the perk that has the chance of producing mutagens when you make potions. haven't tried it myself. Have only come across one greater mutagen (which as I understand it is the only type that even count) and I'm halfway through chapter two.
The whole not letting you upgrade mutagens later is a real mistake with the game design. There is already enough vendor trash.
Ever since one of the earlier patches, I've only ever seen "greater" or giant enemies drop the top tier mutagens. --- "This is just here to make my posts look bigger than they really are" - My Signature
ive got 2 greater vitality mutagens and a madness mutagen just from faming for money for the act 1 dark mode armor...all from nekkers just started act 2 now. guess its all luck --- .........................
I don't see the point in farming for greaters. It takes way too much time to farm for them and the benefits don't seem worth it. Even on Dark Mode, by Act 3 your character should pretty much be a god without any mutagens.
Look up mutagenology on witcher nexus if you want to be able to combine mutagens into bigger ones. Even with mutagenology though expect to spend a loooooong time farming if you want to get useful greater mutagens. If you want all madness mutagens, forget it as it takes 3 of each of the major 3 greater mutagen types for one madness mutagen. I would estimate about 35+ hours farming the nekker pond, as it took me 5+ hours farming nekkers just to get the small amount of power and strength greaters I wanted.