change:

An artifact effect has a name, a score, and a body. They are listed in a bulleted list under the subrule “Artifact Effects” They are written name(score):body

to:

An artifact effect has a name, a score, constraints, passive effects, and a body. They are listed in a bulleted list under the subrule “Artifact Effects” They are written name(score)[passive effect]:body. An artifact effect without a passive effect may omit the square braces.

Add to the rule “Artifacts”:

The passive effect of an artifact effect is only rules-text if an artifact has that artifact effect in its effects.