Dismissal is a 9th level cleric Daily attack that was introduced in Divine Power.
You utter a mighty shout and cast your enemy out of the world.
Ranged 10
Target: One creature
Attack: Wisdom vs. Will
Hit: The target disappears into an extraplanar prison (save ends). The target takes a -2 penalty to saving throws against this effect, or a -5 penalty if it is an aberrant, elemental, fey, immortal, or shadow creature. When the target saves against this effect, it reappears in its original space. If that space is occupied, the target returns to the nearest unoccupied space.
Aftereffect: The target is dazed until the end of its next turn.
Miss: The target disappears into an extraplanar prison until the end of your next turn. The target then reappears in its original space. If that space is occupied, the target returns to the nearest unoccupied space.