Going through IOD and just noticed at level 8 that my shaman's weapon has +3 Parry on it. It's a bespoke class weapon through the questline "Spiritualist's Gleaming Mace". The issue is that Shaman do not have a skill to parry, only dodge and block. And even when equipped it does not increase parry, since there is no apparant skill for it listed under the Adventring>Skill tab.