An enchantment which treats a wholly metal artifact/weapon so that it will not oxidize, tarnish or rust. The enchantment is not an artifact power, "occupies" no Ego and leaves no residue. It cannot be laid on an enchanted artifact, but a weapon treated with Sheen can be subsequently enchanted.
If cast as the artifact is being forged, the Duration of Sheen is indefinite (MS) or permanent (CS). If cast on a complete artifact, Duration is ML days (MS) or indefinite (CS). The caster must continually handle the item while casting this spell.
ML76+: May be laid on a mostly metallic weapon.
Fatigue: (15 - SI)x1.5
Time: 15 - SI hours
Range: Touch
Duration: See above