search inside eclipse (ctrl+h) abnormal then follow some lines and see how excactly its beign added I would start by skills what abnormal effects exist in game find id find the effect used in core follow follow and find the source of how its beign added in what ever its beign added, that way you will learn too, not only for abnormal effects but how to find whatever you need to its core, second part after finding the effect you want search how the character equip and unequip items where you add this item where you remove it add the effect and remove it with a simple if (item.getEnchant() >= 10) for example 10 or greater.