Mega Rayquaza

Mega Rayquaza has been announced. It's ability is confirmed to be Delta Stream, it prevents other weathers being activated, and over-rides all weathers including Desolate Land and Primordial Sea. It also removes the effectiveness from moves that would be Super Effective on Flying-type Pokémon. It gets the attack Dragon Ascent, it is said to be the most powerful Flying-type move. It lowers the user's Defense and Special Defense stats when used. As if Primal Groudon wasn't OP enough