Elemental Body IV

When you cast this spell, you can assume the form of a huge air elemental, huge earth elemental, huge fire elemental, or huge water elemental. The abilities you gain depend upon the type of elemental into which you change. Elemental abilities based on size use the size of the elemental you transform into to determine their effect. You are also immune to critical hits and sneak attacks while in elemental form and gain DR 5/—.