Heatran and other Sinnoh region Legendaries, such as Palkia, Dialga, Giratina, and Cresselia, are also the featured Pokemon of the Road to Sinnoh and GO: Tour Sinnoh Global events.

Following Heatran Raid Hour, the pure Psychic-type Cresselia will be released in raids for one week, followed by Articuno and Zapdos, also reigning over Tier Five raids for a week, respectively.

Heatran can be countered with Ground-type Pokémon, while Cresselia can be defeated using Dark and Ghost-type Pokémon. When raiding Articuno and Zapdos, the best bets are Rock-type Pokémon.

After Heatran, Niantic Labs has recently announced Cresselia as the new Pokemon for the five-star legendary boss raids--and here's how to defeat it.

Cresselia ex has a decent attack in Psychic Flash, which deals 80 damage for three Energy, but the Lunar Plumage ability allows it to heal 20 HP each time you attach a Psychic Energy to it.

Pokemon GO Battle League has three formats – the Great League, the Ultra League, and the Master League. Cresselia is one of the few Pocket Monsters that fits in comfortably in all of the three ...

But winning against Heatran as a 5-star boss is extremely hard, and one must prepare thoroughly. Pokemon GO trainers can get a Shiny Heatran, but it requires defeating numerous Heatran 5-star raids.