Shapeshifting
Specialization

Rank 1: Shifting appearance

Universal Trait:
The creature is able to change its appearance, and general form at will. This can easily make the creature appear as a different being, or possibly even a different species. If the creature has ranks of disguise, then it can use this as a +10 bonus to their visual disguise, though they still need to know exactly what they're turning into.

Rank 2: Hidden Traits

Universal Trait:
Choose a number of traits this creature already has. Those traits are usually 'hidden' and inactive. As a non-combat action, the creature can morph, and display some, or all of those traits.

Rank 3: Amorphous Body

Framework:
The creature has no base form, and instead is more of an amorphous blob. Amorphous creatures have no limbs, but do not require any limbs to have special abilities like claws, wings, etc. Amorphous creatures have reach as if they were one size-category larger, and can fit through any area that could fit a creature up to 4 size categories smaller.
Amorphous creatures have +2 body, and can choose 2 Universal traits.

Rank 4: Contagious Transformation

Universal Trait:
Each time you take this trait, choose a number of other traits (that this creation has) equal to your ranks of flesh crafting. These traits are now 'contagious', and when this creatures blood, saliva, etc. Enter the body of another being, it will start flesh-warping these traits onto them. Many creatures do not survive the process as normal for fleshwarping, and some will reject the transformation. Other alchemists and fleshwarped creatures will generally resist the transformation.