Monstrous Monday: The Yule Cat

In the same lands that gave us Grýla, The Christmas Witch we also get the Yule Cat, also known as Jólakötturinn or Jólaköttur in Iceland.
Described as a huge and vicious cat that preys on people that did not get new clothes for Yule/Christmas. 

The Yule Cat, and there is only one, can run across ice and snow with no difficulty.

The Yule Cat
(Labyrinth Lord)
No. Enc.: 1 (1) Unique
Alignment: Chaotic (evil)
Movement: 40' (120')
Armor Class: 4
Hit Dice: 5+5*** (28 hp)
Attacks: 3 (claw/claw/bite)
Damage: 1d6/1d6/1d8
Special: Can detect who did not get new clothes for Yule/Christmas
Save: Monster 5
Morale: 10
Hoard Class: None
XP: 500

The Yule Cat
(Blueholme Journeymanne Rules)
AC: 4
HD: 5d8+5
Move: 40
Attacks: 2 claw (1d6 x2), 1 bite (1d6+2)
Alignment: Chaotic
Treasure: None
XP: 500

The Yule Cat
(Old-School Essentials)
AC 4 [15], HD 5+5 (28hp), Att 2 claw (1d6x2), 1 bite (1d6+2), THAC0 17 [+2], MV 120’ (40’), SV D14 W15 P14 B76 S15 (5), ML 10, AL Chaotic, XP 1,700, NA 1 (1) Unique, TT None
▶ Fleet-footed: Can travel over and ice and snow with no difficulty.