Vity may be a lovable goof, but he's also a unicorn stallion, and one that has been tutored in magic since before he got his cutie mark, and has been studying it ever since. If the magic is written down he can study it and perform it, alone or with help. And should it come down to it the same cutie mark talent that lets him teleport the contents of an egg out of it without breaking the shell could also be used to more gruesome effect.

And yes, I still suck at digital colouring