Arrow Split

Arrowsplit
Conjuration (Creation)
Level: Assassin 3, ranger 3
Components: V, M
Casting Time: 1 swift action
Range: Long
Target: One creature
Duration: Instantaneous
Saving Throw: None
Spell Resistance: No

You fire a masterwork or magical arrow at a target, and it splits in mid-flight into 1d4+1 identical arrows or bolts. All the missiles strike the same target, and you must make a separate attack roll for each missile.
Material Component: Masterwork or magical arrow or bolt.