Maker's Gift (Ex): Each yaoguai gains one additional ability that is based on it's specific form. Typical additional yaoguai abilitiesb include the following.
     Flight: The yaoguai gains a fly speed of 30 feet (clumsy).
     Grab and constrict: The yaoguai's tentacle attack gains grab and constrict. The creature's constrict damage is equal to its slam damage plus its Strength bonus.
     Poison: One claw or tentacle attack is replaced with a sting attack (same damage as the replaced attack) plus poison. Poison Sting Injury: save Fort DC 19; frequency 1/round for 6 rounds; effect 1d2 Strength damage; cure 1 save. The save DC is Constitution-based.
     Pounce and Rake: The yaoguai gains pounce an rake (2 claws 14+ 1d8+7)
     Quills: A creature attacking then yaoguai with a melee weapon, an unarmed strike, or a naturel weapon takes 1d8+7 points of piercing damage from the yaoguai's guills. Melee weapons with reach do not endanger thier users in this way. 
     Trample: The yaoguai gains a trample attack that deals an amount of damage equal to its claw damage 1-1/2 times its Strength modifier. 

Polymorph Susceptibility (Su): A yaoguai is immune to polymorph effects or effects that otherwise change its shape, but the attempt to alter its shape causes it great pain and it must attempt a saving throw if the effect allows it. If it fails its save or the effect doesn't allow a saving throw, the yaoguai is staggered and loses its damage reduction and fast healing fo 1d4 rounds.

Melee Attack:  

Bite: +12 to hit, reach 10 ft., 1 target. Hit: 12 (2d6 + 6) piercing damage. 

Claw: +12 to hit, reach 10 ft., 1 target. Hit: 12 (1d8 + 6) slashing damage.

Tentacle: +12 to hit, reach 10 ft., 1 target. Hit: 12 (1d8 + 6 plus grab) damage.

Speciel Attack:

Constrict: (1d8 + 6) damage.