Implement Bonus

Beginning at 1st level, while wielding a rod, staff, or wand, you gain an implement bonus to all of your to-hit rolls with all Melee Touch Attacks and Ranged Touch Attacks. This bonus does not apply to any normal (non-touch attacks you make. This bonus can only be applied to spells or spell-like abilities that you cast, and that require a touch attack.

The implement bonus is equal to +1 at 1st level, and increases by an additional +1 per 4 class levels, dropping fractions, to a maximum of +9 at level 33 (i.e. +2 at 5th, +3 at 9th, +4 at 13th, +5 at 17th, +6 at 21st, +7 at 25th, +8 at 29th, and +9 at 33rd). Note that, if you multi-class into another class that also gets this bonus, the class levels stack for purposes of calculating this bonus.

If you are not actively wielding a rod, staff, or wand, you do not get this bonus.