This is Bowsers Mega Evolution, no but seriously, this is what he turns into, and for this voice, i need a Demonic growly voice, but i still need to be able to understand it, so you can add your own flare to it, or you can try to sound like Smaug from The Hobbit, and for example if you want to try to sound like Smaug: https://www.youtube.com/watch?v=FocqBbPJ1cQ