  The /bGem/z set into a wand attunes it to a single magic element, granting +5% spell power to that element's school.
<~><~>  A /bSupercharged Diamond/z attunes to no one element, and instead grants +5% power to every school at once.
<~><~>  A /bGold handle/z deepens this attunement, strengthening the elemental bonus further.
