I feel like starfish are one of those animals that are treated as very “normal” by people but absolutely shouldn’t be. Like they’re a wheel of repeating heads connected by a central stomach. They walk around using thousands of tiny sticky hydraulically powered tentacles. They have an eye on the end of each arm. Instead of having a mouth they just have an opening where their entire stomach can be pushed out to engulf prey. And they’re just allowed to exist like this. It’s not illegal or anything.

Eldritch horrors come in all sizes

There has got to be an art somewhere of a kaiju-sized starfish walking over a city. You don't know when or where they'll drop their stomach. You can't do anything about it. All you can do is hide inside a building and hope it's sturdy.