Now the Snake Pit baby!

Here's Boa!

As a Demon Slayer, his Breathing Style would be Serpent Breathing, and he would know all five forms.

As a demon, his Blood Demon Art would be Molding Form. He can take the form of anything - human, demon, plant, or object - he sees; he can mimic them down to every tiny detail until it's impossible to tell the difference between the two. And if the globs of flesh he disconnects from his body touch any living or non living thing, he can affect its shape and size to his liking.

What do you think?

And don't worry - Rantaro is up next!