Calaway Jason

Hand to Hand Combat
Jason is not only a self-taught hand-to-hand combatant with years of street fighting experience. He also combined the training he picked up from the marine's, so he has formal and non-formal training.

Jason is an expert in hand-to-hand combat being very skilled in multiple martial arts. His training first originated under combat experts whose fields of expertise were un armed combat while livining on the streets and working in the navy.

While the majority of the instructors' curriculums were simplified for training the navy, it is possible that they trained him in the more complex techniques because his body was already developed for them and because the majority of his combat knowledge (including his gymnastic-based techniques) was already established prior to his joining the navy. As a result, he is well versed in Boxing, Judo, Jujitsu, etc.

Physical Strength
Higher then average.

Weapons
Only use's the weapon's provided by his Devil Fruit.

Devil Fruit
Summary, Hito Hito no Mi, Model: Shinigami

Type, Zoan

Usage of the devil fruit, Go and see.

Haki
While living on the streets and while working for the navy, Jason awakened and was trained to his use his haki on the streets and refined while working in the navy; plus got more experince while working as a bounty hunter.

Kenbunshoku Haki: Color of Observation

Busōshoku Haki: Color of Armaments

Haōshoku Haki: Color of the Conquering King