Ocean finds

What if we had a new trading system with villagers to get OP things? You could add rare Oysters into oceans or seas which open up to reveal 1 or more pearls. To open these oysters you can put any pickaxe and the oyster into a crafting table. This will then open the oyster and will give you a pearl. You can then use this pearl to trade with special villagers underwater (new villagers) which will then trade you the pearls for diamonds or Netherite (maybe not that OP but something like that).