Instinctive Darkness

(Drow of the Underdark, page 50, DnD 3.5)

[General]

After extensive training, you can negate light instinctively

Prerequisite

Darkness as a spell-like ability.

Benefit

You can use your darkness spell-like ability as an immediate action. This does not provoke attacks of opportunity. You also gain one extra daily use of your darkness spell-like ability.

Normal

Using darkness requires 1 standard action and provokes attacks of opportunity.