Te

Zenkai- Works similarly to Dragon Ball, and allows one to become stronger in some way after near-fatal injuries. 

Chemistry mind- His ability to think like this allows him to understand the properties of different elements, and compounds. He doesn't just memorize formulas; he instinctively knows how to manipulate and combine materials to create something new.

Soul manipulation- Allows him complete control over his soul and dead ones.

Hatsu- equivalent exchange, similar to Full metal alchemist, but since he has the philosopher stone some of the limits on his abilities are null

Koby

Adaptable body- Allows his body to adapt to any poison, medicine, experiment, injury, or attack. The same thing won't work on him after a few tries.

Engineering mind- a unique skill that allows him to visualize, design, and build advanced technology or machinery with remarkable precision and creativity.

Mimicry- skill allows him to rapidly learn and replicate techniques, abilities, or fighting styles just by observing them in action. His sharp mind and keen observation skills give him the ability to break down the mechanics of an ability, whether it's Haki, Nen, or complex martial arts moves, and internalize them almost instantly. This talent makes him incredibly adaptable in battle, as he can quickly match or counter an opponent's techniques. While his initial replication may not be perfect,

Hatsu- element mimicry, allows koby to change his aura to any element that he has been exposed to.