Adds 2 new entities
*Sunken - Drowned variant of skeleton, only spawns naturally and cannot be obtained from drowning a skeleton because you can't
-Spawns most commonly in oceans and swamps but solemnly on rivers
-Can spawn with a bow, crossbow, trident, golden sword or nautilus shell
-Shoots prismarine arrows, a new projectile. They aren't affected by water at all but in exchange, they can't throw tridents
-Not afraid of wolves and even fights back
-Hostile to players at night or when they are in water
*Creeper fish (inspired out of Oily_oli and Vadis365's Aquacreeper) - Still acts like a regular creeper, except they're a fish; They only spawn in ocean biomes.
-They also deal twice the damage in water because it may seem that water should block explosion damage, but in reality it makes it worse due to immense pressure caused by the explosion; the damage is only applied when you are completely underwater
-Can survive on land
-Always hostile to players

Requires Experimental Gameplay for them to spawn