Superhuman Physical Characteristics, Enhanced Senses, Martial Arts, Extrasensory Perception, Magic, Empowerment (His emotions directly translate into magic power and his strength grows more powerful as said emotions get stronger), Blessed (Those with the Fairy Tail Guild emblem are granted greater magic power and protection from death while on Tenrou Island), Metal Manipulation (Can generate and manipulate both iron and steel), Breath Attack, Absorption (Can absorb iron and shadows. All Mages passively absorb Ethernano from the atmosphere to regenerate their Magic Power), Absorption Negation (Dragon Slayers are capable of entirely negating the effects of the Anima, which is capable of absorbing all of someone's magic power and transmuting them into a Larcima Crystal), Multiple Selves (Type 1 and 3. Had Metallicana dormant inside of him for years until the end of the Tartaros Arc), Transformation (Can transform his limbs into metallic weapons that can be extended), Dragon Slayer Magic (His Magic is especially effective against dragons and those with dragon-like properties, bypassing their defenses), Magic Resistance Negation (Can use Dragon Slayer Magic to damage characters and objects which are normally immune to Magic), Limited Regeneration Negation (Dragons are unable to heal or regenerate from injuries that come from Dragon Slayer Magic), Limited Power Mimicry, Statistics Amplification (Via Iron Dragon's Scales), Resistance to Metal Manipulation (Specifically iron and steel), Absorption (Dragon Slayers are completely resistant to the effects of the Anima, which is capable of absorbing all of someone's magic power), and Transmutation (Dragon Slayers are completely resistant to the effects of the Anima, which is capable of transmuting someone into a Larcima Crystal), Limited Resistance to Durability Negation (His innards are made out of scales that are as tough as the scales he uses to defend his body, and as a consequence of this, techniques that bypass the external durability of their targets and attack the innards of someone are less effective against Gajeel)

Iron Dragon Slayer Magic: Gajeel was taught how to use Iron Dragon Slayer Magic by Metalicana, "The Iron Dragon". As its name implies, Gajeel's particular Dragon Slayer Magic deals with the manipulation of iron. Gajeel eats iron to regain his own strength, and his teeth and jaw muscles are powerful enough to gnaw through solid metal with ease, even allowing him to eat the Magic-canceling metal of the Dorma Anim. Gajeel's Magic deals with producing multi-sized iron rods, as well as changing parts of his body into steel. Most of his attacks involve transforming his arms into blunt, metallic weapons, which he can do at will. Additionally, Gajeel may turn his iron into steel if he somehow becomes able to absorb trace amounts of carbon; said process is still toxic and harmful to his body as it would be to others, but the addition of the natural element changes the composition of his spells, allowing him to deal enhanced damage and/or break through defenses that his iron could not.

• Iron Dragon's Roar: Gajeel's exclusive, metal-based Dragon's Roar. After gathering Magic Power in his mouth, Gajeel shapes it into a powerful tornado which he subsequently emits and sends towards his foes. Such tornado possesses immense force, being capable of generating powerful explosions and inflicting heavy blunt damage, but also releases sharp shards of metal in the process, shredding the opponents' body.
• Iron Dragon's Club: Gajeel transforms his arm or leg into a large steel club, increasing his punching and kicking power. He can also create multiple, smaller clubs from the end of the original, hitting many enemies at once. The clubs can be elongated at Gajeel's will, making them powerful ranged weapons. He is also apparently capable of increasing their size dramatically and to detach them from his body: several of these clubs, enlarged to gargantuan size, were the main cause of the original Fairy Tail Building's destruction. Also, for added maneuverability and to take opponents off-guard, the club can be rapidly turned into the similar "Iron Dragon's Sword."
• Iron Dragon's Sword: Gajeel transforms his arm or leg into a large, jagged steel blade, similarly to "Iron Dragon's Club," but, rather than blunt power, this spell has cutting power, thereby making it deadlier. The spikes along the blade's edge make its slashes more painful and dangerous, and the weapon's length can be increased to reach enemies who are far away from Gajeel. The blade is also sturdy enough to function as a shield of sorts. In the anime, the sword also functions as a chainsaw, effectively increasing its damage.
• Iron Dragon's Scales: Gajeel covers part of his body (or the entirety of it) in steel scales, dramatically increasing his offensive and defensive abilities. When punching and kicking while covered in these scales, Gajeel is capable of creating powerful gusts of wind through mere kinetic force. When confronted with Natsu Dragneel's flames, the resulting clash generated a powerful shock wave which heavily damaged the area surrounding the two of them. These scales are strong enough to shatter bone and rock alike, are resilient against regular flames, and much harder than normal iron, as shown when Pantherlily's Bustermarm Sword wasn't able to cut through them.
• Iron Dragon's Hard Fist: Gajeel punches the target while covered in "Iron Dragon's Scales," greatly enhancing his punching power.
• Iron Dragon's Lance: Gajeel transforms either one of his arms or legs into a long, lengthy iron lance, which he can use to attack his opponent in a number of ways. Gajeel can also notably use this spell to transform both of his arms into long, lengthy iron poles which he uses to whip in a circular motion to clear out anything in his immediate vicinity.
  • Iron Dragon's Lance: Demon Logs: Gajeel turns his arm into a large spearhead, from which a large number of steel spears are fired towards his target in rapid succession. The attack is sometimes portrayed with Gajeel instead extending one arm towards his target's direction, with his fingers outstretched, and then summoning his Magic Seal in front of him, from which the spears are fired.
• Iron Dragon's Mallet: Gajeel can transform his hands into iron mallets which he uses to attack his target multiple times. This spell is also strong enough to enable Gajeel to send a giant monster flying after attacking it.
• Steel Dragon's Sword: An enhanced version of Iron Dragon's Sword, only performable after Gajeel has absorbed carbon and turned his iron body into steel. Much like the original spell, he turns his hand into a long sword, this time made of steel, and slashes at his target; this spell can break through defenses that Iron Dragon's Sword cannot, such as Torafuzar's hardened skin.

Iron Dragon's Roar

Iron Dragon's Club

Iron Dragon's Sword

Iron Dragon's Scales

Iron Dragon's Hard Fist

Iron Dragon's Lance

Iron Dragon's Lance: Demon Logs

Iron Dragon's Mallet

Steel Dragon's Sword

• Karma Demon: Iron God Sword: Seemingly one of his most, if not the most powerful spell in Gajeel's possession, being acknowledged as one of the"Secret Arts" attainable by the "Iron Dragon Slayer." Gajeel claps his hands together above his head, creating a gigantic iron sword. He then proceeds to swipe the sword down, destroying a substantially large area in front of him.
• Karma Demon: Iron Spiral: Seemingly his second ultimate move, Gajeel transforms his legs into a giant drill, which rotates at high speed, heavily damaging and piercing through whatever it strikes. He used this spell to destroy the Dragonoid's core and to free Natsu from his imprisonment. Although it did what it was intended to do, Gajeel stated that he still had a long way to go, since he "planned" to destroy the whole Dragonoid, along with Natsu.

Karma Demon: Iron God Sword

Karma Demon: Iron Spiral