Shiro Sora abilities

Cooking: As the chief on the pirate king ship Shiro Sora's cooking skill is one of the best in the world as he can help keep the crew in peak state and gives them the best nutritional diet.

Swordman:  Shiro Sora's sword style is a perfect balance state between a strong blade and a gentle blade, with the top state using hyogoro (using armed Haki with the sword) and a top mastery using tobu zangeki with the elemental power of his blue flame.

Blue Flame: Sora's special power and it can be said it is his Goldfinger from traveling, The blue flame can be said to be a spiritual flame that burns and freeze with the power of ice it has the effect of purifying what it burns it won't leave any ashes or burn marks, the blue flame temperature depends on the user, Sora was able to use the blue flame up to 3000 degrees and the lowest temperature was -100, the blue flame have a small healing effect and can increase body strength and break the limit of the body.

Haki: As a member of Roger's pirates sora doesn't have a devil fruit but relies on his Haki.

Armed Haki: The top mastery of armed Haki such as hardening, imbuement, emission, and internal destruction.

observation Haki: The top mastery of observation Haki such as presence sensing, strength sensing, intent sensing, and future vision (2 minutes).

supreme king (overlord) Haki: The top mastery of overlord Haki such as domination, incapacitation, pressure, infusion(eliminate).

Navy Six styles: Sora is capable of using some of the Navy Six styles such as moonwalk, shave, and return to life 

blue flame sword: Also known as the demon sword it can devour the soul of those who died under it, it is used to strengthen the sword and enhance the user's willpower at the cost of the user becoming a bloodthirsty madman. After Sora used the blue flame sword to purify it the sword changed to a black sword with a blue flame shadow and the side effect of becoming a bloodthirsty madman was gone.