Pokemon Go players are still able to encounter Mewtwo in EX Raids, but the Legendary Psychic Pokemon is making a brief return to standard Raid Battles as well. Niantic is bringing Mewtwo back for a Legendary Raid Hour event tonight only, October 8, giving you another chance to catch one that knows the rare Psychic-type attack Psystrike.

What Time Is Mewtwo Raid Hour?

The makeup Mewtwo Raid Hour takes place around the world from 6-7 PM local time. During that brief window of time, Mewtwo Raids will take place at most local Gyms. Unlike the aforementioned EX Raids, which require an invitation, you only need to have a Raid Pass to participate in a standard Raid Battle. You can get one of these for free when you spin the Photo Disc at a Gym, but you can only hold one free one at a time.

What Makes This Mewtwo Special?

The Mewtwo you can currently encounter in EX Raids knows the Ghost-type attack Shadow Ball, but the one appearing at Gyms tonight knows Psystrike, a powerful Psychic-type attack first introduced in Pokemon Black and White.

On top of that, you'll also have a chance of encountering a Shiny Mewtwo during tonight's event. Your odds of coming across one are slim, however, so if you're hoping to add a Shiny Mewtwo to your collection, you'll need to participate in as many Raids as possible.

Mewtwo Battle Tips

Mewtwo is a pure Psychic-type, which makes it weak to Dark, Ghost, and Bug Pokemon. Your best bet for battling it will be to bring along monsters like Tyranitar, Scizor, or Pokemon Go's current Legendary, Giratina. Gengar will also be effective against Mewtwo, but its part Poison typing means it'll take super-effective damage in return, so it likely won't last too long. If you've caught a Mewtwo that knows Shadow Ball, it'll also be a big help, since it'll dish out super-effective damage and resist the Psystrike attack.

Once tonight's Raid Hour event ends, Mewtwo will leave standard Raids again, and Altered Forme Giratina will return. You'll have until October 17 to catch that Pokemon, after which point it'll be replaced by an as-yet unannounced Legendary. For tips on how to catch one, be sure to check out our Giratina Raid guide.