Otiluke’s freezing sphere is a multipurpose spell. The character can cast any one of the following three versions:

Frigid Sphere: A tiny sphere of freezing matter steaks from the character's fingertips to up to long range (400 feet + 40 feet/level) to strike a body of water or a liquid that is principally water. When it strikes such a target, it freezes the liquid to a depth of 6 inches over an area equal to 100 square feet (a 10-foot square) per caster level. This ice lasts for 1 round per caster level. The sphere has no effect if it strikes a creature, even a water-based creature, but creatures swimming on the surface of frozen water become trapped in the ice. Attempting to break free is a full-round action. A trapped creature must succeed at a Strength check (DC 25) to do so.

Cold Ray: A ray of cold springs from the character's hand to close range (25 feet + 5 feet/2 levels). The character must succeed at a ranged touch attack to hit the character's target. The ray instantaneously deals 1d6 points of cold damage per caster level (maximum 20d6).

Globe of Cold: The character creates a small globe about the size of a sling stone, cool to the touch but not harmful. This globe is a grenadelike weapon and can be hurled either as a thrown weapon (range increment 20 feet) or in a sling. The globe bursts on impact, dealing 6d6 points of cold damage instantaneously to all targets within a 10-foot radius. Affected creatures can attempt Reflex saves for half damage. If the character does not hurl the globe, it bursts on its own after 1 round per caster level. The character can command the globe to burst sooner if the character wishes, but the time cannot be changed once set (though it still bursts on impact after being hurled).