YULE CAT
Yule Cat known as Jólakötturinn is an enormous feline monster that roams the countryside in Icelandic tradition during Christmas time.

Yule Cat is active during Christmas time, when it may even travel to towns and cities. After Christmas eve it peeks inside windows to see if children have earned new clothes as presents. This seems to act as some form of limitation. If a person had been hardworking and active enough to receive new clothes, they would be safe from Yule Cat's hunger. Had they been lazy, the cat was free to first eat their Christmas meal and afterwards the person themself.

Gargantuan beast, chaotic neutral

Armor Class 19
Hit Points 82
Speed 30 ft., climb 20 ft.

STR 19 (+4)
DEX 9 (-1)
CON 18 (+4)
INT 3 (-4)
WIS 12 (+1)
CHA 11 (+0)

Skills: Perception +t, Stealth +4, Intimidation +6
Senses Passive Perception 13
Languages. knows common, elven and abyssal but does not speak any language
Proficiency Bonus +4

Damage Immunities. Yule Cat gains immunity to bludgeoning, piercing, and slashing damage from nonmagical weapons.

Damage Resistances. Yule Cat gains resistance to Fire.

Condition Immunities. The Yule Cat becomes immune to being charmed or frightened.

Senses. YuleCat gains darkvision to a range of 120 feet.

Keen Smell. The cat has advantage on Wisdom (Perception) checks that rely on smell.

Traits
Legendary Resistance (3/Day). If the Yule Cat fails a saving throw, it can choose to succeed instead. If the base creature already has three or more uses of this trait, it instead gains one additional use of Legendary Resistance.

Magic Resistance. Yule cat has advantage on saving throws against spells and other magical effects.

Primal Strikes. The cat ignores other creatures' resistance and immunity to nonmagical bludgeoning, piercing, and slashing damage.

Siege Monster. The Yule cat deals double damage to objects and structures.

Trample . When Yule Cat enters any enemy's space for the first time on a turn, the enemy must succeed on a Strength saving throw or be knocked prone. The DC for this saving throw equals 8 + the cat's Strength modifier + the cat's proficiency bonus.

Actions:
Claws. Melee Weapon Attack: +0 to hit, reach 20 ft., one target. Hit: 3d6 slashing damage.

Multiattack. Yule cat can use its Frightful Presence. Then, if the base creature makes three or fewer attacks in a turn, the cat can make four attacks. If the base creature makes four or more attacks in a turn, the Yule cat can make one additional attack.

Frightful Presence. Each creature of the cat's choice that is within 120 feet of the Yule cat and aware of it must succeed on a Wisdom saving throw or become frightened for 1 minute. The DC for this saving throw equals 8 + Yule cat's Charisma modifier + proficiency bonus. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. If a creature's saving throw is successful or the effect ends for it, the creature is immune to the cat's Frightful Presence for the next 24 hours.

Special Trait
Gave of Death.
. If a creature starts its turn within 30 ft. of the Yule Cat and the two of them can see each other, the Yule Cat can force the creature to make a DC 12 Constitution saving throw if the Yule Cat isn’t incapacitated. On a failed save, the creature drops to 0 hit points, unless it is immune to the frightened condition. On a success, the creature takes 22 (4d10) psychic damage. A creature that isn’t surprised can avert its eyes to avoid the saving throw at the start of its turn. If it does so, it can’t see the Yule Cat until the start of its next turn, when it can avert its eyes again. If it looks at the cat in the meantime, it must immediately make the save.