That Mew is not in any Pokeraps?
That Ash's only poison Pokemon is Muk?
That when Kyurem is Black Kyurem or White Kyurem and you use it in a Union Room battle it will just be Kyurem. This also happens to Giratina when it holds the Griseous Orb and Shaymin with the Gracidea Flower.
Roxie, Janine, and Koga are the only Poison type Gym leaders.