in dof, every celestial is connected to one of the outer islands
party island is connected tohornacle, furnoss, and blasoom
space has plixie, glaishur, and vhamp
cloud has scaratar, attmoz, and galvana
and cave has loodvigg, torrt, and syncopite
literally the only thing they do with this is have sales and have the main game inventories require monsters from those islands
celestials on the outer islands could be so cool, it could give long-time players more motivation to keep playing and could make party island slightly less repetitive
but instead we have sales. hooray