Charged Shot (3.5e Invocation)

When you use this blast shape your eldritch blast is a full attack action. You fire one attack, which deals 50% more damage than normal. If you have a BAB of +6, the damage multiplier is x2 instead. If you have a BAB of +11, the damage multiplier is x3. If you have a BAB of +16, the damage multiplier is x4. If you have a bonus attack a round, such as from haste, the multiplier rises by one.