Animal Companion — Mastodon

Size Medium Speed 40 ft. AC +7 natural armor Attack gore (1d8), slam (1d6) Ability Scores Str 14, Dex 14, Con 13, Int 2, Wis 13, Cha 7 At 7th level size becomes Large, Str +8, Dex -2, Con +4, +3 natural armor, gains trample (2d6).