New biome-specific mob variants

Hello Minecraft team,

I would like to suggest ideas to enrich the Mounts of Mayhem update or future versions. The main concept is to expand regional mob variants, adding visual and gameplay diversity to the world.

1. Ocean Skeleton
   Inspired by the skeleton variant from Minecraft Dungeons.
   Spawns only underwater.
   In normal oceans, it would have seaweed on its body; in coral reefs, it would be covered in colorful corals, making it visually unique.
   It could use either a bow or a spear-like weapon.
   This would make deep-ocean exploration feel fresher and less repetitive.

2. Glacial Zombie
   Covered in ice or frost.
   Spawns only in snowy or icy biomes.
   When it hits the player, it applies a freezing effect (similar to powdered snow).
   The player starts freezing and will take extra damage with each subsequent hit unless they remove the effect.
   Encourages players to step back or find heat before continuing the fight.

3. Swamp Zombie
   Body covered in mud and swamp plants.
   Spawns in swamps and mangroves.
   When it dies, it releases a toxic cloud (3-block radius, lasting 5–6 seconds).
   Any player entering the cloud receives Nausea or Blindness for a short duration.
   Makes swamp combat more strategic and forces movement.

4. Improved Illager Patrols
   Bring back original patrols with a twist:
   Small groups, similar to current patrols, with a low chance of spawning with a Ravager to create rare.
   Taming Ravagers could be considered, but similar to Happy Ghast 2, it may be better if they are not easy to tame.