Dinobots - Transformers: Power Core Combiners

Transformers: Power Core Combiners

Grimstone is the first Power Core Combiner to use animal forms instead of vehicles like his team members. According to his bio, Grimstone has dreamed of power and the privilege it brings, yet he considers the needs of others before himself. His belief is that it is the responsibility of the powerful to protect those less fortunate; and with his newly-formed Power Core team, he will enforce that belief.

A toy line called "Power Core Combiners" was released in 2010. This set was a new mold and came with four Dinobot drones: a Parasaurolophus, a Pachycephalosaurus, an Ankylosaurus, and a Dimetrodon mislabeled as a Spinosaurus, all of which combine with Grimstone to form a larger robot. Grimstone's alternate mode is labeled as a Triceratops, though he is actually a Styracosaurus.