subtypes

Mandatory traits:  Any Experimental subtype trait.

Special subtype traits: Mutations, Deformed, Misplaced, Multiple "X", Mood Transformation

Special Tail Weapons: Any.

This type is twisted Ecto type that achieved by using Twisted Joke of Fate.

Special subtype traits: Ghosts Container

Special Tail Weapons: Ghost sucking device like in ghostbusters. 

This type is twisted Peaceful type that achieved by using Twisted Joke of Fate.

Special subtype traits: Barbed Wire Vines, Embedded Objects, Shrapnel

Special Tail Weapons: Anything overly aggressive looking.

This type is twisted Vampiric type that achieved by using Twisted Joke of Fate.

Special subtype traits: Alternate, Were-form, Monster Form

Special Tail Weapons: Being twisted version of Vampire subtype, some of them can have a vampire hunter type weapons or accessories on the weapons.

Additional info about different forms:
Alternate form is the least hostile of others, it gives a character an entirely different appearance as a different BFB all together. This means a character with this form can transform into different BFB with any subtype (except restricted ones) and with any basic + subtype traits (No limit for those). Keep in mind that transformation is not controlled by the BFB, and alternate form can have their own personality and consciousness. This means BFB can not even know that they can transform into another BFB! Sometimes alternate know they are an alternate and can abuse it if the main BFB doesn't know that they can transform.

Were-form is somewhat in between being hostile and non-hostile, it amplifies BFB features into a bigger creature with large paws, more fur and beefier body. Some can be extremely aggressive and wild when this happens, but some can remain calm and civil. Amplification is also can amplify how big some other traits are, like claws or spikes being massive. Coloring of the were-form should be the close to the base coloring of the character (at least same colors that can be saturated or desaturated more, or darker or lighter), patterns can be changed a little too, but it still should be visible that it's the base character that transformed.

Monster Form is the "worst" of them all in terms of hostility and aggression, it completely transforms the character into monster-ish creature, the look of it can vary. This form must have some runes on the body or face, and some traits from the character should remain to keep the monster somewhat recognizable as this character (but it may be really vague). When a character is transformed, they become extremely aggressive to others, wild and unpredictable, even focusing on hunting other creatures, other BFBs included. Other BFB traits can also be amplified.