Combat Familiar

(Player's Handbook II, page 76, DnD 3.5)

[General]

Your familiar is skilled in delivering attack spells against your foes. It flits past their defenses to discharge its spell without leaving itself vulnerable to attack.

Prerequisite

arcane caster level 1, familiar

Benefit

If your familiar holds the charge for a touch spell, it does not provoke an attack of opportunity for entering an opponent's square.