You can use the power of a wielded wand to make some spells you cast harder to resist.

Prerequisites: Dex 13, Spellcraft 3 ranks

Benefit: You may perform somatic components with a hand holding a wand. In addition, if you cast a spell of the same school as the wand, you may expend a charge from the wand to add a +1 bonus to the DC of the spell cast.