From Cartoon Network's massively popular show Ben 10, it's the Diamond-Humungousaur from the Omni-Glitch Heroes series!
It's an alien mashup! An amalgam of Ben with his aliens... this is one cool Omnitrix glitch! When you combine Ben's heroics with his aliens' powers, you get a hybrid alien that's ready to take on any bad guy!
This figure includes mix-n-match parts, including head and arm, which can be interchanged with the other Omni-Glitch figures!