Groot is one of the Blind Bag characters in LEGO Dimensions 2: The Rise of Enoch, from the Marvel Comics franchise.
Groot is a member of the Guardians of the Galaxy, which also consists of Star-Lord, Gamora, Drax the Destroyer and Rocket Raccoon. Groot comes from a race of tree-like aliens. He can absorb wood to gain strength, control trees, and manipulate his form and grow root-like appendages. Groot is also Rocket Raccoon's friend/sidekick and hired muscle, however Rocket will regularly insult his intelligence.
Because of his limited intelligence, Groot's vocabulary is limited to the sentence "I am Groot."