Polymorph, Greater (Large Water Elemental)

You are in a large water elemental form now. You gain a +2 size bonus to your Strength, a –2 penalty to your Dexterity, a +6 size bonus to your Constitution, a +6 natural armor bonus to AC, resist cold 20, and vulnerability to fire. You also gain two 1d8 slam attacks and the freeze ability. You are immune to critical hits and sneak attacks. Your movement speed is reduced by 10 feet. You may choose to resume your normal form as a full-round action; doing so ends the spell for you. Freeze: A water elemental deals 1d8 cold damage in addition to damage dealt on a successful hit in melee. Those affected by the freeze ability must also succeed at a Reflex save or start freezing, taking 1d8 damage each round for an additional 1d4 rounds. Creatures that hit a freezing creature with natural weapons or unarmed attacks take cold damage as though hit by the freezing creature and must make a Reflex save to avoid freezing.