Red XIII, in his bestial canine wolf lion form, is a magnificent creature. His body is a powerful blend of canine and feline musculature, rippling with strength and hinting at explosive speed. His frame is larger than a typical wolf, closer in size to a large lion, with a deep chest and broad shoulders that speak of immense power. His legs are long and powerful, ending in paws equipped with sharp, retractable claws capable of tearing through flesh and bone with ease. His fur is a rich, deep crimson, almost the color of dried blood, though interspersed with darker, almost black, markings that resemble the shadows cast by a full moon. These markings are particularly prominent along his spine, running down his back like a streak of midnight.

His head is a striking blend of wolf and lion features. He possesses a wolf's elongated snout, but with a broader, more powerful jawline reminiscent of a lion. His teeth are long, sharp, and wickedly curved, perfect for tearing and rending. His eyes, a piercing golden amber, burn with an intense, primal intelligence. They are framed by thick, dark fur that accentuates their intensity, giving him a look that is both captivating and terrifying. His ears are large and pointed, capable of picking up the slightest sound, while his powerful neck is thick and muscular, supporting his large head with ease. A thick, flowing mane of crimson fur frames his face, adding to his regal and imposing appearance. His tail is long and bushy, ending in a dark tuft, constantly twitching with barely contained energy. The overall impression is one of untamed power, a creature of both beauty and terrifying strength, a being that commands respect and inspires both awe and fear. His very presence radiates a primal energy, a potent blend of wildness and untamed instinct.