Felon said:Where'd you read that?
Well the feat (using Qucken Spell-like ability, text is similar in Empower):
QUICKEN SPELL-LIKE ABILITY [GENERAL]
Prerequisite: Spell-like ability at caster level 10th or higher.
Benefit: Choose one of the creature’s spell-like abilities, subject to the restrictions described below. The creature can use that ability as a quickened spell-like ability three times per day (or less, if the ability is normally usable only once or twice per day).
Using a quickened spell-like ability is a free action that does not provoke an attack of opportunity. The creature can perform another action—including the use of another spell-like ability—in the same round that it uses a quickened spell-like ability. The creature may use only one quickened spell-like ability per round.
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) –4. For a summary, see the table below.
In addition, a spell-like ability that duplicates a spell with a casting time greater than 1 full round cannot be quickened.
Normal: Normally the use of a spell-like ability requires a standard action and provokes an attack of opportunity unless noted otherwise.
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 abilities.
Adding the information from the table that follows (regarding SL and CL for empower and Quicken) and the warlock class description (and errata).
Change “An eldritch blast is the equivalent of a spell
whose level is equal to one-half the warlock’s class level (round down), with a minimum spell level of 1st and a maximum of 9th when the warlock reaches 18th level or higher” to “An eldritch blast is the equivalent of a 1st-level spell. If you apply a blast shape or eldritch essence invocation to your eldritch blast (see page 130), your eldritch blast uses the level equivalent of the shape or essence.”
Any other references to eldritch blast being something other than the equivalent of a 1st-level spell should be disregarded.
Any other references claiming that eldritch blast is not an invocation should be disregarded.
Each Invocation is a spell-like ability with their own entries.
When a warlock adds a shape and/or esssence invocation to his eldritch spear it becaomes a unique EB with a separate SL.
Example listed on pg of CA
"His hellrime eldritch spear is therfore the equivalent of a 4th-level spear ."