Holly Jolly Jacket (Patreon)

Wondrous item, legendary (requires attunement)

Wherever you go, winter and merriment follow close behind. While you are attuned to this coat, you are immune to cold damage and you ignore difficult terrain and low temperatures caused by ice and snow. You also grow a long white beard and gain a slight craving for milk and cookies.

Down the Chimney. As an action, you and everything you are wearing and carrying can meld with the coat. Until the end of your next turn you can move through a space as narrow as 1 inch wide without squeezing and cannot be grappled or restrained by non magical means.

Naughty or Nice. If another creature within 30 feet of you rolls a 1 or 20 on a d20, you can use your reaction to change the roll to the opposite number (1 becomes 20 and vice versa). If the roll was for an attack and is changed to a 20, it becomes a critical hit. Once you use this feature it cannot be used again until you finish a long rest.

Father Winter. As an action, you can cause yourself to become wreathed in frigid winter winds for 1 minute. Every step you take leaves icy frost in your wake, causing a 10 foot radius centered on you to become difficult terrain. Melee attacks you make deal a bonus 1d8 cold damage and the first time each turn you damage a creature with a melee attack while this feature is active, the target must make a DC 16 constitution saving throw. On a failed save, the target's speed is halved until the start of your next turn. Once you use this feature you can't use it again until you finish a short or long rest.

'Tis no simple feat delivering gifts to all beings across the land. Danger finds any who partake in such a mission, with unsavory types roaming the world, ready to steal goods that may fetch a pretty penny. But 'tis not by luck or coincidence that every gift reaches its destination regardless of obstacle; the courier himself recognizes the responsibility he shoulders and the importance of his duty. Shrouded in an aura of frost he comes, able to enter any domicile and deliver his packages with none the wiser. And if any stand in his way, let the biting cold of his touch be the last thing they know, his booming laughter the last thing they hear. Ho, ho, ho…