Rex

Rex is a new character in Risk of Rain 2.

Rex is a half-robot/ half-plant that uses HP to cast devastating skills from a distance. The plant nor the robot could survive this planet alone - but thankfully they have each other.

Rex is unlocked by completing the Power Plant challenge.

Trivia

 * Rex and the items Little Disciple and Topaz Brooch were revealed in the IGN stream on June 12, 2019.
 * Rex is referred to as simply "TreeBot" in the Steam UserProfile for the game