Cha 13; Dragon type, Dragon-Scaled species trait, or Dragonblood theme
Description :
Benefit: When you select polymorph as a spell known, you add dragon to the list of creature types you can select when designing polymorphed forms. Changing a target that isn’t a dragon into a dragon form grants them a +2 enhancement bonus to saving throws against paralysis and sleep effects.
In addition, you can cast polymorph on yourself once per day as a 1st-level spell-like ability, using your character level as your caster level. However, you can only use this spell-like ability to assume one predetermined form that has the dragon type.
Special: At the GM’s discretion, other dragon-themed abilities or rewards might allow you to qualify for this feat as if you were a dragon.