Red or green weapons i.e. swords, longswords, battleaxes (not axes or hammers though) seem to have a mana scaling dependent on their +n modifier (although green weapons have a drop-off at higher modifiers. It appears to be a clear enough pattern that it’s not a statistical artefact. I’ve not found anything else about the tools or jewellery though.
Red or green weapons i.e. swords, longswords, battleaxes (not axes or hammers though) seem to have a mana scaling dependent on their +n modifier (although green weapons have a drop-off at higher modifiers. It appears to be a clear enough pattern that it’s not a statistical artefact. I’ve not found anything else about the tools or jewellery though.