Jockey, forgotten polar bear Mont and frozen zombie

1. New Enemy: Frozen Rider Zombie

A new variant of the frozen zombie that appears riding alongside the StraySkeleton (similar to camels). This would represent a significant and unique danger in snowy biomes, offering a new challenge and increasing the variety of enemy encounters.
They will appear riding a wild polar bear (once defeated, the bear cannot be tamed), this would be the second dual mount!
The zombie would have a spear and the skeleton would use slow arrows – an interesting combo!!

2. New Mount: The Forgotten Polar Bear
The polar bear is currently irrelevant, only dropping fish. Let's turn it into a unique "battle mount" and give it a purpose:

• Taming: You can't tame an adult polar bear; you must tame a cub (they can't breed, you have to find one).
• Stats: Slower than the player running, but with very high defense (a tank mount).
• Utility: Can be equipped with a chest to store items.
• Armor (Optional/Extra): The ability to equip armor for additional defense.

This mount would be a very interesting addition to the game: a defensive and highly useful mount that gives the polar bear the relevance it currently lacks. Furthermore, it fits well with the current theme of new mounts and would make a great enemy.