Quoted By:
I'd give it a slight buff to it's base stats
HP: 45 > 60
Atk: 55 > 80
Def: 45 > 85
Sp. Atk: 65 > 70
Sp. Def: 45 > 70
Speed: 75 > 95
Total: 330 > 460
Then I'd give it branched evo.
One that remains Ice/Flying and becomes a bulky Special Attacker, keeping the Santa Motif and a fast, Mixed but slightly more Physical attacker based on Krampus, Ice/Fire.
Santa
HP: 105
Atk: 45
Def: 125
Sp. Atk: 135
Sp. Def: 85
Speed: 85
Total: 580
Ice/Flying
Abilities: Winter Wonderland (New ability that sets up a snow and reduces opponents Super Effective damage by 30%. Exclusive to this Pokémon.), Hustle.
Two new moves: Jolly Gift (essentially an alternate version of Present that functions like a support move. 10% chance to Freeze opponent, 30% to Paralyze, 30% to Sleep, 20% to Drain 1/8th of their current HP, 10% to heal opponent by 1/6th. Exclusive to this Pokémon.), Freeze Over: (working name. Just a 75 power, Special Ice move that is SE against fire types.)
New moves: Chilly Reception, Hydro Pump, Heal Pulse.
Krampus
HP: 85
Atk: 135
Def: 45
Sp. Atk: 105
Sp. Def: 85
Speed: 125
Total: 580
Abilities: Blazing Bane (Exclusive ability that sets up Sun and gives a +1 Atk and +1 Speed boost to itself.), Moxie.
Exclusive Move: Freezing Flame: 65 Power Physical Fire type move with 30% chance to burn and 10% chance to Freeze. Drains 50% of damage dealt
New moves: Crunch, Fire Punch, Fire Fang, Flamethrower, Fire Blast, Sunny Day, Psychic Fangs, Curse, Spite, Grudge, Guillotine.