Recently thought of an idea for a new kind of world event. In the same vein as Ashen Winds setting up on an island, maybe we could get an island overrun with giant crabs/ocean crawlers. If you manage to survive enough waves, a big honking king crab crawls out of the ocean, and you have to fight it. Or have to chase it back into the ocean and then follow it by ship to take it down. So it's kind of an island/ocean mixed encounter where you need to fend off ocean crawlers/crabs boarding the ship while shooting the king. When defeated it drops a king crab crown. It could also drop big claws that Hunters Call would want.
I was also thinking of crab infestations on islands/loot. Just little crabs that can nip at you on the islands when you pick up treasure, and maybe even crawl out of loot when you drop it on your ship. Something you'll need to remove or they will peck at you and make you jump around and do minor damage. You could even have some way to catch crabs and shoot them at other ships to infest them with crabs as well.
I like crabs.
