Inaccurate?

Wand Mastery

( Eberron Campaign Setting, p. 62)

[Item Creation]

Wands are far more potent in your hands.

Prerequisite

Craft Wand (PH) , caster level 9th,

Benefit

When you use a wand, the DC of saving throws against the wand's effect is increased by 2 and the wand's effective caster level is increased by 2.