Within the game, gricks are underground predators which make their hunting grounds where prey is abundant, using their dark coloration to blend into shadowed areas. When prey comes near, it lashes out with its tentacles. Due to the weakness of its jaws compared to the rest of its body, it prefers to drag ensnared prey back to its lair to be consumed at its own leisure rather than to immediately eat it. The grick's rubbery hide can absorb most blows from an attacker, but the beak, however, is a weak spot, as are the tips of the tentacles.
The grick appears as a Common miniature in the Giants of Legend set for the Dungeons & Dragons Miniatures Game. Another, different grick miniature was later released in the Dungeons of Dread set. The Dungeons of Dread miniature is blue, as opposed to the green coloration of the first one.