Principle is a Runeword "RalGulEld" in Diablo 2 Resurrected (D2R). It requires these 3 runes to be inserted into a socketed item in the exact order: Ral
. The eligible bases for Principle are the following: Body Armors
. This is the only Runeword in the game that has X% Chance to cast Level X Holy Bolt on striking attribute.