方解石を投げてくるMOB

I would like to propose a new skeleton variant that spawns specifically in the new Ice Caves biome: the "Calcite Thrower". 

Since Calcite generates abundantly in the Ice Caves, this variant has adapted to its environment by throwing sharp pieces of Calcite instead of shooting conventional arrows.

[Gameplay Mechanics]
1. Environment Synchronization: It utilizes the abundance of Calcite in the biome, making the ecology of the Ice Caves feel more natural and immersive.
2. High Knockback: Instead of high piercing damage, the projectile inflicts a powerful knockback. This synergizes perfectly with the Ice Caves' environment, pushing players onto "Brittle Ice" or into deep crevasses, creating thrilling traps.
3. Shield Disadvantage: The impact of heavy Calcite projectiles could briefly disable shields or drain their durability faster than regular arrows, forcing players to change their usual combat strategies.

This feature would add a fun yet challenging layer of survival to the new biome, testing even the most experienced players!