Anyone can show maybe a video of this skill working exactly? Does it add p atk straight to the weapon like an enchant? or to stat? I cannot find any info before and i have a lot of time to reach lvl 110+
If your weapon has a base Patk of 1000, with Keratron Spear buff, it will be 1000+50. About Patk stat, I don't know the formula, it's not raw +50 .
what i can tell u is this, each +100 p.atk on bow = plus 7.5k p.atk on ur status if u have all the boost for p.atk at +4 artifacts. if u have better artifact just add the bonuses they give u.