For day 12 i felt like whale would be a bit dumb and hard to fit in the collage (wailord or wailmer).
So, to stick more with a halloween theme, I chose "wailing", and went with a pokemon that would wail.
Banette.

(It has blood coming from it's eyes, though it's not in need of a big ol' MATURE tag I think, do tell me if i should change this...)