Beast Shape IV (Wyvern)

You become a Large wyvern. You gain a +4 size bonus to your Strength, a –2 penalty to your Dexterity, and a +4 form natural armor bonus to AC. Your movement speed is reduced by 10 feet. You also have one 2d6 bite attack, two 1d6 wings attacks, 1d6 sting attack plus poison. Wyvern Poison: Sting — injury; Fortitude save (DC 17); frequency: 1/round for 6 rounds; effect: 1d4 Constitution damage; cure: 2 consecutive saves.