Haru wields the Starlight Keyblade, the guard of the Starlight is a recoloration of the classic Kingdom Key's guard; it is a deep, pastel blue color while the handle itself is a deep indigo. The shaft is light-blue and rounded, ending with an orb past the teeth, which are formed by a spike and a five-pointed star of the same color; this results in the Keyblade having a double-edged appearance in a similar matter to Ends of the Earth. A gold rainguard is at the bottom of the bar. The Keychain is a five-pointed gold star and it is attached to the hilt of the Keyblade with a silver chain. The Keyblade's name reflect the stars involved in its design and is also associated with the force of Light.

When Haru summons or dispels his Keyblade, the summoning and dispel visual effects are light particles with blue stars. A wielder is able to summon or dispel their Keyblades at will.

Haru equips Medals on to his Keyblade, they are used to boost Haru's powers and stats. Medals are a character-based object, holding skills, traits and Special Attacks one can utilize, they are the physical manifestation of power from the future, drawn by the Book of Prophecies. And he also wears the Power Bangle, it enables Haru to strengthen his Medals even more. He can only equip 5 Medals into his Keyblade and borrow 1 Medal from a friend.

Originally lacking any formal training, Haru's sword and magic skills comes from reading a book of magic sword training and developed his fighting style from his play-fighting days in his childhood (He started training at the age of 9). Haru bought the book from a traveling moogle merchant (Apparently, he got it on a special deal so the book was quite cheap). He did this to prepare himself the day he was old enough to travel. Haru trained with a toy wooden sword.

Haru is a quick learner.

Haru is a magic fox and because of that, it helped him learn magic more easily. It's thanks to his great affinity for magic. Haru also has a high spiritual resonance that allows him to see and communicate with spirits and other spiritual beings.

Haru's fighting style with the Keyblade consists of strong two-handed strikes, using his legs to perform swift and powerful kicks, and power, speed and magic based attacks. He can use Strike Artes and Magic Artes(Magic), Burst Artes, Mystic Artes, Battle Skills, Techniques, Parameter and Action and Attack and Guard and Move and Support Skills, Special Attacks, Action and Stats and Support and Mobility and Prize Abilities. He is a very skilled magic user and swordsman. He knows a wide variety of powerful spells and techniques. He can use offensive, defensive, support, buff, debuff, utility, healing and recovery spells and techniques. And can use the elemental powers of Fire, Ice, Lightning, Wind, Earth, Water and Nature. He can also channel the power of his heart to use the powers of Light and Darkness.

Haru also has great physical durability and high resistance to magic.

Haru can use the power of Command Styles, he can undergo a Style Change which grants increased strength and new combos.

Haru can use the power of Shotlocks, it allows the user to lock on enemies and then initiate a powerful attack that hits all targeted enemies.

Haru can use the Over Limit ability. It allows Haru to gain greater capabilities than normal, it is connected to his battle spirit. The mightier Haru's battle spirit is, the more powerful his Over Limit becomes.

Haru can use his Keyblade to open or close any lock or door, be it to a physical object, to the heart of a person or world, or to a gate or pathway between worlds. As well as to "lock" a world's Keyhole, preventing the Heartless from attacking that world's heart. For objects like treasure chests, this merely requires tapping the chest, while for more magical locks, the Keyblade generally operates by emitting a bright, thin beam of light from its tip(this can also be used as an attack against certain enemies), or by being thrust directly into the keyhole or person's chest.

In combat, Keyblades are wielded in the same way as swords, with the specific style varying with the wielder. Despite many Keyblades' apparent frailty or lack of a cutting edge, Keyblades are able to serve as both excellent blunt weapons and supernaturally precise cutting tools. Keyblades are especially effective against creatures connected to hearts or darkness, including the Heartless, Nobodies, Unversed and Dream Eaters.

Keyblades are natural conduits for magic; even Keyblade wielders without formal training are able to perform magic with power rivaling that of expert mages. Keyblades may also be imbued with magic for a variety of effects, including allowing the wielder to inflict greater damage or deal elemental damage to enemies. Keyblades can also be used to channel the powers of Light or Darkness.

As a downside of being a Keyblade Wielder, the Heartless use the Keyblade as a homing beacon, and thus Keyblade wielders are at constant risk of Heartless attacks at any time. Haru has to separate himself from his Keyblade so that he can conceal his heart, that way the Heartless won't be able to track Haru with his Keyblade. But that won't work for long.

Haru is capable of casting unique spells known as Fonic Hymns. Fonic Hymns are a type of spells where magic effects are applied through the use of songs. Though mentioned as relatively weak, the ones used by Haru are on par with regular spells in terms of strength. In order to use a hymn to is fullest potential, the user must not only know the melody, but also the meaning and symbolism behind it. Haru hymns can also rejuvenate allies, it can dispel possessions, dispel magical traps, can create protective barriers, erupt or calm down a volcano and quell a raging dragon. If Haru or one of his friends that he has a close and strong bond with is dying or K.O. in battle, there's a small chance for Haru to subconsciously activate his Fonic Hymns hidden ability Anthem. When Haru uses Anthem he sings a powerful hymn that can fully heal, cure any status effects and revive Haru and his friends, boosting his friends and Haru's abilities, allowing him to cause a resonance within the powers of others and himself, augmenting his friends and Haru's physical and magical capabilities beyond normal capacity.

Haru can use Elemancy. Elemancy is a magic-casting system. Haru can extract elemental energy from deposits around the worlds, collect it in Magic Flasks and craft spells he and his allies can use in combat. Using Elemancy does not cost magical energy, instead requiring each spell be crafted from available ingredients collected from the worlds. Elemancy requires a few key ingredients to "craft" a spell. Units of elemental energy can be drawn from elemental veins found throughout the worlds in triangular formations in areas filled with a lot of mana or other types of magical energy. Elemental energy can also be at times drawn from manmade deposits like nitrogen tanks in certain areas. A Magic Flask is a reusable container to put the crafted spell into. After procuring the necessary ingredients, a wide variety of spells can be created by putting together Fire, Ice, Lightning, Wind, Earth, Water, Nature, Light and Darkness elements. Consumable items and spoils from enemies can spice up a crafted spell, adding secondary effects like multi-casts from a single flask, healing the party while damaging enemies and lancing the spell with status effects. Items, Ingredients and Treasures can add effects to spells to either give them more damage or an additional effect.

The Magic Flask is a key item used in the creation and execution of Elemancy. Magic Flasks are spherical bottles that can be packed with refined magic and each flask can carry a certain number of "charges" of a spell before it becomes empty and can be filled again. Magic Flasks hardly resemble a flask or bottle, as their name would imply, instead looking like a sphere with small, transparent designs that show the glowing spell housed within. Because of this design and how they are used, they have been referred to as "spell bombs" or "magic grenades." Haru has 14 Magic Flasks.

He can use a special ability called Flowmotion. It allows Haru to traverse his surrounding environments with great ease. Using Flowmotion, Haru can jump off of walls, grind rails, leap great heights, and dynamically attack opponents. When Haru uses Flowmotion, he is enveloped in a magenta aura, and he is accompanied by two orbiting lights of the same color, that leaves a trail of light behind it.

Haru can use the Barrier ability, the barrier forms briefly from a blue light from the palm of Haru's hand to create a spherical shield of blue light with a violet hue, with an extra ring of hexagonal panels around the outer circumference. The barrier forms around Haru, blocking any type of attacks from all directions and it can deflect projectile type attacks to deflect it back at the enemy, charging the deflected projectile attack with Haru's barrier reflect power to do additional damage at the enemy. He can use it on the ground or midair. When used in midair, it causes Haru to briefly hover while the barrier is active. If an attack is successfully guarded with Barrier, he can do a counterattack with his Counter Blast ability. After a successful block with Barrier, Haru can use Counter Blast, the barrier unleashes a series of large, random light explosions as it disperses around Haru, dealing a flat amount of damage based on Haru's magic power to anything hit by the blast. Counter Blast hits surrounding enemies.

Haru can use the Payback Surge ability, it allows Haru to counterattack by lunging forward cloaked in a spherical shield of blue light with a violet hue, with an extra ring of hexagonal panels around the outer circumference after being knocked back into the air by an enemy's attack.

Haru can also use the Light Slide ability, it allows the user to disappear and reappear behind an enemy in a flash of light just before it's attack connects. Haru can activate this ability before the enemy's attack connects. If Light Slide is successfully executed, he can do a counterattack with his Reversal Slash ability. After a successful dodge with Light Slide, Haru can use Reversal Slash, it allows the user to perform an aerial slash attack with his Keyblade at the enemy's backside.

Haru can use the Light Roll ability, it causes the user to transform into a glowing sphere of light, move at a fast pace in the desired direction, and then return to normal form. This ability allows the user to evade attacks swiftly on the ground and on midair.

Haru can use the Doubleflight ability, it allows the user to spawn an ephemeral platform of light in midair which the user jump off to reach greater heights. It allows the user to leap higher by means of a second jump.

Haru can warp, allowing him to instantly cover long distances and reach great heights by tossing his Keyblade for it to act as a relay point for him to manifest at. Targeting an enemy with warp allows him to Warp-Strike, which allows him to perform an accelerated stabbing attack with a greater deal of damage depending on the distance covered to the target. The more far away Haru is from his enemy, the more damage he deals to his enemy with Warp-Strike. Warping leaves behind blue silhouettes of Haru. And Haru can use Warp-Kill, it allows him to instantly kill an enemy, regardless of its health or resistances, if Haru has not been detected and combat has not begun. If Haru is still not detected, he can perform another Warp-Kill. He cannot use this ability if he is detected.

Haru can use the Fatal Strike technique. Performing a Fatal Strike allows Haru to fell an enemy with a single blow, regardless of the enemy's remaining life/health/stamina. For powerful enemies that are stronger than Haru, however, Fatal Strikes deal a large amount of damage to compensate for not instantly killing the enemy. There are three different Fatal Strikes; Green Fatal Strike is a sideway attack, Blue Fatal Strike is an upward attack and Red Fatal Strike is a downward attack. The enemy must be attacked multiple times with the appropriate directional attacks corresponding to the particular Fatal Strike to gain a chance to use the technique. Performing a Fatal Strike allows Haru to recover some magical energy and be healed too.

Haru is a natural leader and a brilliant tactician, able to analyze most situations to quickly formulate and execute effective plans with others in order to take down tougher foes in coordinated attacks. He's very aware of the capabilities of his allies and is able to properly coordinate them into achieving feats that can give them the upper hand during a battle. His plans are highly ingenious, creating strategies on the fly and even whipping up "crazy" plans or new battle tactics out of pure inspiration. His tactical brilliance is enough to impress almost anyone, with the latter noting that few people can think as fast as he can.

Haru is occasionally able to see through others when they try to hide things, he does not reveal their secrets until the time is right.

He is a skilled hacker and a genius technician. Haru is capable of easily gaining access to almost any computer or program he wants in a matter of seconds.

He is also an ace pilot and a skilled mechanic. Haru is also a gifted dancer and singer.

Haru has night vision and a excellent sense of smell and hearing for being a fox.

Haru also has a unique ability to sense the power level of anyone; the stronger the enemy, the more powerful the sensation. He can also sense mana and other types of magical energy. He can also sense and feel the Light and Darkness within people's hearts and the powers of Light and Darkness too.

Haru can become stronger when he makes bonds of friendship. The more bonds he makes and the stronger those bonds become, the more powerful Haru becomes. And the people he has made bonds with will also become stronger too. This is possible because Haru has a big heart and always opens his heart to other peolpe and cherishes the connections he has with them.

Haru has a divine power called Overclock. When Overclock is activated, it allows Haru to slow the world's time to a crawl, allowing only Haru and his allies to move normally with enhanced speed and enhanced power. It also allows Haru and his allies to be able to cast spells in a instant instead of waiting for the spell to be ready to cast. Overclock only last about 30 seconds. He can only use this power only 9 times a day in battle only, this is because he has a limit by how much he can spend his divine energy to use this power. His divine energy becomes fully replenished in the next day, he can also replenish his divine energy by using certain restoration items like an Ether that restores some divine energy, Turbo Ether that restores a great deal of divine energy and an Elixir that restores fully his divine energy. He can also recover his divine energy by defeating enemies, the more powerful the enemy he defeats, the more divine energy he recovers. In forgotten legends, this is a power that only gods can use, and mortals who have been choosen by the gods to become Saviors.

Haru has muscle growth powers, this power can make Haru to go through a muscle growth transformation sequence. Increasing his body mass at a big-scale, making all the muscles in his body to grow big, strong, muscular and thick. The growth also makes everything that Haru is wearing to break and rip apart if his clothes are too small for his growing size. He gains incredible super strength, his great physical durability is enhanced and his max muscle growth size is 571 ft tall. Haru can also make himself explode in a harmless or harmful explosion when he is big and muscular, after he explodes, he will return back to his normal size immediately.

Haru is really shy about his muscle growth powers but enjoys a lot getting big, strong, musculer and thick. When Haru is in his room alone with time for himself, he will play, have fun and pleasure himself with his muscle growth powers by growing, flexing, posing, feeling, touching, rubbing, admiring and worshipping his own big, strong, musculer and thick body. Haru keeps this power a secret because he would feel really embarrassed and shy if someone ever found out about it but he is okay sharing his secret with his very close trusting friends.

Haru knows a special version of the Stopja time spell that he learned, this special spell can reverse time on an broken inorganic object to turn it into a state before it became broken. The bigger the object is and the more severe of the damage is, it will take more magical energy to fix the object.