Soul Eater Black☆Star Abilities

Black Star using Soul Resonance with Tsubaki along with the Uncanny Sword.

Physical Fitness: Black Star is noted to be the fastest Shibusen student (with the possible exception of Kid, who purposely did not perform as well has he could so that he could get a perfect 8 seconds time), surpassing Kirikou. His agility and speed are almost to an incredible level, as he can run 100 metres in less than six seconds, jump from tree to tree, and dodge multiple attacks with ease. Aside from his speed, Black Star is also incredibly strong and has great stamina, being able to endure punishing physical workouts such as five hundred one-handed press ups. Tsubaki also comments that he never gets ill. His strength and speed cause him to be a force to be reckoned with even without Tsubaki present. His instincts in combat are so acute, that things like switching stances and attacking and defending are completely natural. Sid even goes as far to say that Black Star is a 'heaven-sent warrior.' His endurance is also great, as he can keep on fighting without a drop in form despite suffering from serious injuries and wounds and continuing fights with powerful enemies despite great amounts of blood loss. His physical prowess grow even more as the series progresses. Even Stein, the strongest person to ever graduate from Shibusen, has a hard time when sparring with Black Star, commenting that Black Star is close to outdoing him in terms of physical combat. As well as martial arts, Black Star is adept at wielding Tsubaki's Weapon forms with great efficiency, and is flexible in battle, switching to different Weapon forms for different styles of combat. He is also regarded as the strongest attacker out of his team, consisting of Maka and Kid.

Strong Wavelength: Black Star is a practitioner of Soul Menace — an attack that Stein also uses. By resonating with one's own soul, one can drive their own Soul Wavelength directly into an opponent's body through a physical strike on them. Only people who have a strong Wavelength and the ability to manipulate one's own Wavelength, can use this move, and Black Star has both qualities. Although Black Star is not as proficient in using it like Stein, he has managed to create two of his own variations of Soul Menace: Planet Destruction Cannon and Certain Kill: Black☆Star Big Wave. Stein once gives Black Star a pot of Soul Absorption Liquid, which drains his Wavelength at one touch, in order to make his Wavelength stronger. At first, Black Star can barely put his hand in it, but, when asked about it later on in the series, he replies that he became annoyed and drank it all. According to Stein, not even an average adult Meister would have lived if he or she did that. His Soul Menace attacks get so strong, that even Stein cannot negate his Wavelength. His soul itself is stronger than average, and like his body, can take a lot of punishment. This is even farther alluded in that his soul as shown in resonance with Tsubaki early in the series is only slightly smaller than Maka's soul in resonance with Soul as a Death Scythe a good 50 chapters later. His Soul Wavelength is also powerful enough to blow away madness from the surrounding area.

Ninja Abilities: Black Star is originally an assassin, specializing in ninja tactics and stealth, but his arrogance often leads him to reveal his whereabouts, defeating the purpose his role as assassin. The few times he uses his ninja stealth is when he peeps on Tsubaki (which normally ends up with him yelling and showing his whereabouts upon seeing Tsubaki's nude body) when she is bathing, or when he finally takes the fight seriously. When he does use his ninja arts though, he is deadly, being able to erase every trace of his existence from the enemy's eyes, and striking them before they notice him. Likely due to his lack of a sixth sense — Soul Perception — Black Star has developed his natural five senses, most notably his sense of hearing, and has quick reflexes. He is able to recognize unstable footsteps from Crona and is able to hear the conversation between Sid and Nygus when they ware talking about Stein's arrival. His strong soul and his lack of a sixth sense in turn makes him stronger against insanity as he cannot sense it as well as others.

Shadow Weapon: After Tsubaki absorbed her brother's soul, Black Star gains access to the Uncanny Sword. At first, the sheer power of the sword is far too high for Black Star to handle. However, through practice and making peace with the entity within the sword, Black Star gains access to its remarkable power. He demonstrates his new power in the face off against Mifune in their last battle. During the battle, Black Star uses the sword, granting him unprecedented power and speed, new powerful Weapon forms and the ability to use his own shadows as Weapons.

Madness: Black Star later acquires the ability to change his Wavelength to one of madness. This ability, loosely translated as 'Madness Release' (発狂 Hakkyou) increases his power, giving him almost superhuman strength, as he is able to lift up the Cyclops with one hand. His power over the Uncanny Sword also increases. In this form, his usual white and blue Spartoi uniform and scarf changes to black, his bandages are bisected with black lines and his pupils turn into large stars up until they almost completely block out the irises. Although this ability grants him great power, even he has the possibility of slipping into insanity if he uses it for too long, unless he forms a Chain Resonance with someone like Maka, who can use her courage and Anti-Demon Wavelength in order to act as a support to Black Star's sanity.