You mark a target for certain death

As part of this invocation you have to make a ranged touch attack against the target. The target is marked with an invisible mark of your patron(see invisible can reveal it). Any hit against this target now has a doubled crit range. When you roll a critical threat against the target, you automatically confirm it. You can only affect one creature with this invocation at any given time. When a creature marked for death dies, you may invoke marked for death as a swift action in your next.

Focus: None

Material Component: None