Gray has a laid-back personality, but he will often get serious when the time calls for it. He and Natsu have a friendly rivalry, and while they can often be seen fighting one another verbally or physically, they are actually concerned about each other. Gray was quite obstinate and reckless when he was younger. Over time, he has attained a more cautious attitude towards life, and deals with problems carefully. He is really concerned about his comrades and is truly loyal towards the guild, but tends to trash talk every now and then. Also, he has a disturbing habit of unconsciously removing his clothes at inappropriate moments. Although he has shown occasional interest in women, Gray is rather oblivious when it comes to others feelings concerning him, such as Juvia's long-standing crush.
Ice-Make (氷の造形魔法 (アイスメイク) Kōri no Zōkei Mahō (Aisu Meiku)): A form of Molding Magic that allows the user to create ice at his will and to shape it into objects. In Gray's case, he uses Static Ice Make, meaning he can shape his ice into inanimate things or weapons. Ice-Make is known as an extremely versatile form of Magic, coming in useful both in battle, for offensive and defensive purposes, and outside of it. Specializing in it and having been practicing it for years, Gray possess extreme mastery over it, being capable of creating countless amounts of objects for a multitude of uses. Also, according to him, Ice-Make allows to produce virtually everything, granting the user an unmatched creation capability.
Freeze: Ice-Make's most basic, yet one of its most useful capabilities is that of covering everything Gray comes into contact with in ice. This comes in useful for a variety of purposes, from damaging opponents to making things' composition weaker in order to more easily break them. What can be frozen depends on the user's own ability; Gray, with his great mastery of Ice-Make spells, has proven himself capable of freezing even burning things such as Juvia's boiling water and Fukuro's flames, as well as to freeze an object faster than Sugarboy's Rosa Espada could soften it.[240][241][242]
- Ice-Make: Lance (ランスRansu): Gray extends his arms forward, creating long, curved ice lances that he shoots toward his enemy, impaling them. This makes for a powerful ranged attack.[243]
- Ice-Make: Shield (シールドShīrudo): Gray creates a large shield made of ice in front of him, whose shape is vaguely reminiscent of a flower, which shields everything behind it.[244]
- Ice-Make: Hammer (ハンマーHanmā): Gray creates a large ice hammer that floats above his opponent before dropping on them with great force. The first time Gray used this against Lyon, he was blocked.[245]
- Ice-Make: Floor (フロアFuroa): Gray simply freezes the floor, which makes anyone in the area slip. Gray is also capable of freezing water with this spell, and slide on the resultant floor.[246]
- Ice-Make: Bow: Gray creates a large bow out of ice, which can be used to shoot powerful ice arrows at his targets.
- Ice-Make: Super Freeze Arrow: Using Ice-Make: Geyser and standing on top of the resulting ice formation, Gray can can rise up to a high point to shoot his arrow; after the shot, the speed of the arrow increases with gravity and air pressure, making ths attack much deadlier than usual. The first time Gray used this was to defeat Racer.
- Ice-Make: Battle Axe(バトルアックスBatoru Akkusu): Gray creates an axe out of ice for melee combat and swings it around him. The first time he used this was against Juvia, but it was ineffective.[248]
- Ice-Make: Sword: Gray creates a sword out of ice for melee combat. The sword is very durable, being capable of cutting and parrying other weapons as if it were made of metal.[249]
- Ice-Make: Cold Excalibur (氷聖剣 コールドエクスカリバーCōrudo Ekusukaribā): Gray creates a massive greatsword out of ice for melee combat. As with its smaller version, the weapon is very strong and sharp; in addition, its slashes seem capable of leaving behind large wakes of ice which can damage the opponents.[250]
- Ice-Make: Ice Bringer (氷魔剣 アイスブリンガー Aisu Buringā): Gray generates two curved swords of ice in his hands and rapidly moves them forward in an X motion to slash his opponent.[251]
- Ice-Make: Geyser (ガイザー Gaizā): Freezing the ground in front of him, Gray creates a tower of ice spikes that impales opponents, greatly damaging them. The first time Gray used this was to attack Lyon, but he failed.[252]
- Ice-Make: Ice Cannon (アイスキャノン Aisu Kyanon): Having created a large, bazooka-like hand-held cannon, Gray fires a cannonball made of ice to deal massive damage to his opponent. The first time he used this was to defeat Lyon.[253]
- Ice-Make: Prison(プリズンPurizun): Gray creates a large square cage out of ice to trap opponents. The first time he used this was to stop Lyon's ice animals from attacking him.[254]
- Ice-Make: Grappling Hook: Gray creates two four-pointed grappling hooks with chains connected with the Ice-Make auras around his hands, which can be used to hold grasp of higher surfaces or objects, allowing him to lift himself.[255] (Unnamed)
- Ice-Make: Death Scythe: Gray first creates a large scythe made out of ice, and then jumps into the air. When he's high enough, he swings the scythe at his opponent.[256](Unnamed)
- Ice-Make: Gungnir (戦神槍 (グングニル) Senjin Yari (Gunguniru)): Gray releases a gigantic lance out of ice which traps the opponent in it.
- Ice-Make: Ice Dummy: Gray creates a copy of himself made out of ice. The copy is perfectly identical to him, being revealed as made of ice only after a close, careful inspection, and thus coming in useful to avoid enemy attacks or to create a distraction for Gray to attack on his own.[257] (Unnamed)
- Ice-Make: Stairs: Gray makes stairs out of ice, so that he can get to previously unreachable places. The stairs, despite the nature of the material composing them, don't seem to be slippy at all. The first time Gray used this was to find Lyon.
- Ice-Make: Slide: Gray makes a slide out of ice, so that he can get to previously unreachable places. The first time Gray used this was to find Lyon. (Unnamed) (Anime-only)
- Ice-Make: Rampart (ランパードRanpādo): Gray creates an extremely massive and high wall out of ice, which can stop his opponents in their tracks, but uses up a lot of Magic. The first time Gray used this was to stop Racer.[258]
- Ice-Make: Cocoon: Gray surrounds his body with a cocoon of ice, which has spikes jutting outwards, to protect himself from enemy attacks. It has a similar purprose to Ice-Make: Shield, but protecting Gray on every side instead of one. It's unknown, though, if this spell is durable like its standard counterpart.[259]
- Ice-Make: Ice Hammer: Gray creates a giant spiked hammer made out of ice and hammers it onto the target. [260]
- Ice-Make: Ice Wall: An alternative version of Ice-Make: Geyser, which freezes the opponent instead of impaling them. (Anime Only)
- Ice-Make: Knuckle: Freezing the ground under his opponent, Gray creates a tower made of large ice fists which strikes his opponent.[261] (Anime Only)
- Ice-Make: Saucer: Gray creates a large, spinning ice disk, capable of cutting through like a buzz-saw, which he launches at his target.[262] (Anime Only)
- Ice-Make: Fishnet: Gray releases an icy wind from his hands, which takes on a fishnet-like shape, and allows him to freeze his opponent.[263] (Anime Only)
Ice Blade: Seven Slice Dance (氷刃・七連舞 Hyōjin : Nanarenbu): After creating ice blades jutting back from both of his forearms, Gray displays his swordsmanship by rapidly slashing his enemy seven times. This is often used as a finishing move, causing heavy damage to the enemy.[264]Iced Shell (絶対凍結 : アイスのドシェル Zettai Tōketsu: Aisu no Sheru): Gray also has knowledge of this forbidden, extremely dangerous and powerful Magic, and has expressed the certainty that he could use it, if he were forced to.[265]Unison Raid (lit. Fusion Magic)(合体魔法 (ユニゾンレイド) Gattai Mahō(Yunizon Reido)): In the anime, Gray and Juvia also succeeded in using Unison Raid during their fight against Dragonoid. Both Magic Seals created one, and they fused their Magic together. When Gray's and Juvia's Magic fused, there were massive amounts of water and ice needles erupting from all over Magnolia Town.[12] (Anime Only).
Ice-Make: Arrows: Gray creates one or more arrows out of ice, which are subsequently shot at high speed to enemies through the use of the previously made ice bow.[247] (Unnamed)