Empower Spell-Like Ability [General]

The creature can use a spell-like ability with greater effect than normal.

Prerequisite: Spell-like ability at caster level 6th or higher.

Benefit: Choose one of the creature’s spell-like abilities, subject to the restrictions below. The creature can use that ability as an empowered spell-like ability three times per day (or less, if the ability is normally usable only once or twice per day).

When a creature uses an empowered spell-like ability, all variable, numeric effects of the spell-like ability are increased by one-half. An empowered spell-like ability does half again as much damage as normal, cures half again as many hit points, affects half again as many targets, and so on as appropriate. For example, a night hag’s empowered magic missile deals 1½ times normal damage (roll 1d4+1 and multiply the result by 1½ for each missile). Saving throws and opposed rolls (such as the one made when a character casts dispel magic) are not affected. Spell-like abilities without random variables are not affected.

The creature can only select a spell-like ability duplicating a spell with a level less than or equal to half its caster level (round down) – 2. For a summary, see the Empower Spell-Like Ability table. For example, a creature that uses its spell-like abilities as a 13th-level caster can only empower spell-like abilities duplicating spells of 4th level or lower.

Special: This feat can be taken multiple times. Each time it is taken, the creature can apply it to a different one of its spell-like abilites.

Source: Monster Manual (version 3.5), page 303.