Azmuth's Gauntlet of Polymorph (Omnitrix)

"I didn't create a weapon, all of you did! I created the ultimate device for understanding all the beings of these realms!" --Azmuth

Azmuth's Gauntlet of Polymorph, also known as the Omnitrix, is a gauntlet of great power created by one of the first artificers; a gnome named Azmuth. Azmuth created the gauntlet as a means to catalogue the various species he experienced in his travels. The gauntlet is made of white, silver, and black metal, with a disc on the back of the hand containing a large, glowing emerald, with four smaller emeralds inlaid in the disc that holds the largest emerald in place. From this emerald, the forms of creatures are projected like constructs of light. Azmuth was the only one who could truly control the gauntlet at its full potential, but with him long-dead, whoever wields it holds only a fraction of its true power.

Once a being is in possession of Azmuth's Gauntlet, the wearer can transform into nearly any creature they have seen as an action. At any new level, the wearer can choose ten creatures with a CR less than or equal to their total level. The gauntlet can be activated by touching one of the smaller emeralds, and a form can be selected by twisting the ring holding the largest emerald. Once a form is selected, the user is to touch the largest emerald, through which they will transform. Once per day, the gauntlet will have 1d10 charges for the day, with each charge lasting 1d10 minutes, with a cooldown time of equal value. If the user is reduced to 0 HP while transformed, they are returned to their original form, with a two hour recharge for the gauntlet.

Every time the gauntlet is activated, the user must roll a d20. On a natural 1, the gauntlet malfunctions, and the user instead transforms into a random creature decided by the DM.

If the gauntlet has been unattached to a sentient being for more than one month, it will leap at the first sentient being that comes within a 10' radius of it and attach itself to the being's arm (a DC 15 Dexterity saving throw to prevent this). The gauntlet binds itself to the left hand of a sentient being, and adjusts itself to the wearer's size. The gauntlet can only be removed by the wearer's death or a Remove Curse spell.

Notes: any sentient creature of any alignment