At 15th level, the bonus damage increases to 1.5 times their elementalist level, and they gain a +2 bonus to their caster level with the Earth package from the Nature sphere.
This replaces Favored Element.
Hard as Stone (Ex): At 5th level, an earth warrior gains DR 1/adamantine. This increases to DR 2/adamantine at 11th level, and DR 3/adamantine at 17th level.
This modifies Elemental Defense.
Earth Movement (Su): At 7th level, an earth warrior gains a 15 ft burrow speed. This improves to a 30 ft burrow speed at 13th level, and the earth warrior gains tremorsense 10 ft. At 19th level the burrow speed increases to 45 ft and the tremorsense increases to 20 ft.
This replaces Elemental Movement.
Earth Body: At 20th level, the earth warrior’s body has becomes as hard as stone. His damage resistance increases to DR 15/adamantine.
This replaces Energy Body.