Creating a mega evolution every day until Pokemon legends z-a comes out – Day 30: Mega beheeyem

Mega beheeyem's body is violently contorted after it mega evolves, but it uses its now detached forehead to its benefit, floating around inside it and using it for protection. The three dots on each of its tentacles all blast scorching psychic beams that burn people's minds and force them to do its bidding.