- "Let me tell you something...!"
- ―Rath's main catchphrase
Rath is a tall, muscular tiger with a humanoid body, and orange fur and brownish stripes on said fur. Rath wears black pants with white tiger-esque stripes on the thighs with a white and green design on the legs. He has two claws protruding from his knuckles that can expand in size.
The Omnitrix symbol is located on his waist.
As a 16-year-old, he wore a black and green costume similar to a Luchador.
- Enhanced Strength- Rath is strong enough to lift large earth formations.
- Sharp Claws- Rath's hands each have one large claw that can extend.
- Combat Techniques- Rath is quite skilled in combat. Rath has a few names for his fighting moves, such as "Ophiuchus Face" and "Sirius Butt-Kicking".
- Anger Empowerment- The more Rath gets angry close around berserker rage the more his natural abilities will increase exponentially.
- Enhanced Durability- Rath has great durability to the point that it can survive a drop of thousands of meters with only some pain.
- Enhanced Senses- Rath's senses of smell and hearing are superior to humans.
- Strong Teeth- Rath's teeth are strong enough to shatter metal.
- Powerful Roar- Rath can release a powerful roar which can stun certain enemies when off guard.
- Enhanced Speed/Quadrupedalism- Rath can run on all fours to improve his speed.
- Wall Scaling- Rath is capable of scaling and running on walls.
- Overwhelming Personality- In this form, Ben's emotional vulnerability is amplified, as most of his decisions are guided by rage. In time, Ben has learned to tame Rath's unpredictable outbursts, but can still have an episode when provoked.
- Hydrophobia- Being a feline-based transformation, Rath is highly afraid of water.
- Feline Control - Being a feline-based alien, Rath can be controlled by people who have the ability to control the feline species.
- Sensitive Hearing - Rath's hearing is very sensitive to some types of sonic frequencies.
- Laser Pointers - Rath is easily distracted by laser pointer dots.
- In Chapter 2: The Lonely Ghost (Page 5), 16-year old Rath was seen in a flashback among other aliens holding the Big Bang.
- In Chapter 8: Risen (Page 31), Rath held off and forced Speed Demon away from The Orion Squad.
- In the Ben 10 Franchise, Rath is considered a favorite by cast, crew, and fans.