I have a little rant against these evil stones, because like you guys I have been fooled into believing that putting wood stones would increase wood magic attack for my werefox. The fact is: IT'S NOT TRUE!!!
Before you guys start buying grade 8's and grade 9's, please read the following and know the truth about elemental stones:
Balas, Beryll, White Jade, etc, are all elemental stones. They proclaim to add either elemental defense or elemental attack. What the explaination DOESN'T SAY is that the elemental attack is purely physical: As in it won't affect your magic attack whatsoever.
It's a nice hopeful thing to think of.
Whitebrume grade 9 = +40 magic attack
White Jade grade 9 = +80 metal attack
So wouldn't the white jade be better for EPs? NO!!!
In fact, the ONLY good elemental stones for weapons would be a metal attack stone for EAs, since they do physical damage with their weapon, WBs with wood stones since they have a buff that increases wood elemental attack already, and possibly WRs if they wanna specialize on killing a mob/boss with a specific element.
Now how do I know this to be true?
You can experiment this for yourself. Find a low level wand with at least one socket. It's a little rare but not uncommon. Use the wand because it keeps close to the same range of damage so it's easier to define. Now, take turns putting in a grade 1 whitebrume and white jade, and go out to adc to see how to damage increases or stays the same when you fight a mob.
What I Found (I experimented with wood. I think it's a Beryl Stone? Too lazy to look xD)
No Stones against any mob = same damage
No Stones against a mob weak to wood = more damage
Whitebrume against any mob = increased magic damage
Whitebrume against a mob weak to wood = hit the mob harder because of it's weakness
Beryl against any mob = same damage as no stones
Beryl against a mob weak to wood = same damage as no stones
Now, any of you guys can try this for yourselves and see the differences. I personally think its stupid that PW made it so unclear. I had a friend the other day start attempting to make a grade 12 elemental stone until I explained this to them.
Now, if I'm wrong at all, let me know so I can buy some wood element stones, but if I'm not, have a quiet snicker at the ones who invested a lot of money into crafting the highest grade they could, without trying this out first.