For a dinosaur Grimnak's statistics are quite poor.
This is made up for by his special abilities which have some potential.
I do not consider him to be quite as big a threat as he appears to be.
Grimnak is best used to attack enemy squads with medium or small figures.
Like all hungry dinosaurs he eats these troops for breakfast.
He is the greatest threat to troops like Zettian Guards or Izumi Samurai which have high defense values.