Version: 1.20.1
Loader: Forge

Idea:

The ocean feels pretty empty & dull with no sense of danger, It would be nice if the mob the Barnacle 2017 Mob Vote is considered in a future update. It would pull players down with its tentacle (tongue) & spawns in the Deep Ocean biome and has a large mouth or shell that it uses to propel itself through the water.

Ideas I'm a fan of:

• It would be faster than a normal-speed swimming player, but is slower if you sprint swim, especially if you swim up/down
• It would be hostile to you, but neutral to all other mobs
• It would have low spawn rate
• Drop could be: 2-3 ink sacs (not something OP since it's not a mob to seek to fight). If it must have a secondary drop, maybe It can use the "gameplay/fishing/junk" loot table or "gameplay/fishing/fish"

Ideas not I'm a fan of:

• I'm not a fan of it breaking boats or if the interaction is over-complicated beyond it just pulling you down (+ doing damage) & you trying to escape or defeat it

Extra info:

I love how this mod implemented it, but the problem is I can't use that mod because it has no configuration to disable any of the other stuff & the mod maker seems to have moved on