Ya vchera napisal pismo v GM  nashot mixa i poluchil takoi otvet :
GM Reply

Hello the best kalonline player !!!
This is KalOnline.
We received your explanation well.
If you mix stone of ice(example), you get lv1 weapon.
And then if you mix stone of Strenght(example), you get lv2 weapon.
It apply last using stone.
Also, if you want to mix Stone of Demon's Blood or Stone of Mystery, you must have lv2 weapon.
Please refer the information.
Have a nice day with KalOnline.
Thanks.
Ishodya iz etoqo net raznisi kakoi ti kamen stavish vtorim - u tebya poluchayetsa oruziye G2 mix
Derzayte..................