Download full size inforgraph here.
Mega Latias is here! As a regular Latias, it hasn’t seen much usefulness in the game, but as a Mega? I’m sure that’s going to be a good for PvE, especially with the new Mega system.
What to use? Latias goes down to dragons the best, even it’s dragon moves don’t scare them off. You can even use a Mega Latios against itself, for the boost to your party, and hopefully the shiny flex on your fellow trainers. Mega Gengar and Mega Houndoom also have a lot of play, if you are fancy you can work with your fellow battlers and choose what is best and when to maximize boost time.
Go to the official counters page for a complete list, including shadows and megas to see how your Pokémon perform.