Rune Imprinting

Rune Imprinting is a method of imbuing weapons and gear with special attributes utilizing runes in Lineage 2 Revolution.

Official Summary
After a tremendous amount of research, Aden’s greatest sages discovered a way to direct Einhasad’s grace directly into adventurers’ bodies. This blessed ability that strengthens the body without relying on weapons or armor as intermediaries is called Rune Imprinting. You can use the Rune Fragments you have obtained to increase your stats.

Runes can increase various stats such as Attack, Defense, Magic, Evasion, Critical Rate, etc. Stats are permanently increased, regardless of any future class transfers or changes to equipment. The Rune Pages used for imprinting runes expand as characters grow, allowing characters to become even stronger.