He is very concerned about his comrades and is truly loyal towards his guild, but tends to trash talk every now and then. In Gray's case, he uses Static Ice-Make, meaning he can shape his ice into inanimate things or weapons.
Still, his most consistent pieces of clothing are his necklace, which resembles a sword with a stone in it, a metal bracelet and a chain which is attached to the belt loops on the right side of his pants.
After obtaining Ice Devil Slayer Magic from his father, he gains a tattoo symbolizing the Magic on his right arm.
Following his entry into the Avatar cult, he has seemingly erased his Fairy Tail mark, replacing it with Avatar's mark, but it turned out to be only an overlay on his black marks.
but over time, he has attained a more cautious attitude towards life, and deals with problems carefully. Ice-Make (氷の造形魔法, アイスメイク Aisu Meiku): A form of Molding Magic that allows the user to create ice at his will and to shape it into objects.
Gray, with his great mastery of ice 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.
It has also been suggested that Devil Slayer Magic is a very fickle Magic, and that learning it too quickly and making use of its properties in rapid succession have had adverse effects on Gray, causing him to become afflicted with black markings that have thus far spread across half of his body on two occasions He has become proficient enough in this Magic to be able to encase an enemy in a spiked cocoon of ice, roll him across a field of enemies and manipulate it into an immense burst of ice in a matter of seconds.
Unison Raid (合体魔法, ユニゾンレイド Yunizon Reido): Gray is capable of using this ability, although he has only performed it alongside Juvia till now.
As an Ice-Make user, Gray is an individual resistant to cold and as such is able to take damage from ice and snow-based attacks without sustaining major injury and is either completely immune to snow based attacks such as Eve Tearm's Snow Magic or is more resilient to it than other people.
Ice Magic (氷の魔法 Kōri no Mahō): Ice Magic allows the user to manipulate or create the element of ice.