>>31376347Poison/Steel do not really have many strong powerful moves to deal with fairies, they got more common as a necessity.
Fairy is s stupidly OP type, more than Dragon ever was, and the only reason the game is not all fairies all the time is because most pokémon that type are low BST shitmons, with bad movepools.
Xerneas and the Tapud are things that happen when you give something with decent stats and moves the Fairy-type. And since they'll probably keep adding more moves next gen, Fairy will be soon even more OP, when things like Bulu and Koko gain access to physical STAB