there could be a urn with a larger capacity that get filled up further each time u right click of a filled cauldron with a cap of 4 this could yield farther storage capacity (at the expense of resources to craft progresfuly more large urns)
Nothing currently uses multiple souls, so I see no reason to implement urns of various sizes. If we ever make them into decorative blocks, I will reconsider then.
there could be a urn with a larger capacity that get filled up further each time u right click of a filled cauldron with a cap of 4 this could yield farther storage capacity (at the expense of resources to craft progresfuly more large urns)