Legendary Pokemon Heatran is coming to Pokemon Go.
As announced on Pokemon Go’s official Twitter account, Heatran will come to Raid Battles today at 1:00 PM Pacific Time and wil remain in the game until January 15 at 1:00 PM Pacific Time.
Heatran is the third Legendary Pokemon from generation 4 to come to Pokemon Go, following Giratina with the Halloween event in October and Cresselia last month.
Source: IGN.com Pokemon Go Adds Legendary Pokemon Heatran