Here's the next Pokemon in my fan-made generation games: Pokemon Light and Shade, Mysecto!

Mysecto is the first Bug-Fairy type, and it can learn various moves from those two types and then some.

And with it's stats, it can be a great competitive Pokemon by being able to harshly lower a Pokemon's Sp.Attack and Sp.Defence while, if you get it's hidden ability Serene Grace, you can get the second effect from your moves so you can flinch, confuse, and lower stats further while doing damage.