Some of the skyblock server maker which use aternos might know that Uskyblock is malfunction and appears many bugs which the server owners of using this hoster can't solve it or either use it. Recently i saw on net which 2 of the skyblock plugin (new) like joeskyblock and askyblock and they are easier to use. For Askyblock it is fully customize and less bug compare to Islandworld and less config or setup is needed, it is unlike b4 in now cause it can straightly use after installation complete but for the Askyblock i didn't know whether it can
combine with oregen or oregen2 plugin to generate ores. For Joeskyblock, it is an old fashioned of skyblock plugin but which it didn't need to use permissions and can combine with oregen or oregen2 plugin to generate ores however nethers,ender portal disable in it and it also don't consist of challenges and limited of commands in it and also u will see the bedrock in the plugin to shows the limitation of ur island can build. In joeskyblock u can invite others enter and edit ur island which makes ur server lag but don't delete the island of the owner.
And for joeskyblock, it is impossible to let players and admin fly no matter given permissions or not . In addition, Joeskyblock automatic separates the inventory from normal world and skyblock world also the basic items given in chest is can't edit or adjust, so joeskyblock is an hardcore skyblock plugin and there are no /is level or /is topten to view or compare with due to its less commands so it is just a basic skyblock plugin.
Erm lastly, when askyblock players do the /is leave if the players don't have created an island b4 will not cost the money he or she earned but if have created an island b4 will cost the money he or she earned from the current money of him to $10 only. For /is kick it i don't know whether it will hurt money or not but the items is straightly given to the island owner and in sometimes even ur island member leave or being kicked it will shows up in the /is team and somehow this is a bug and if when the targeted member is being kicked, it can be in the same island as b4 like haven't in kick so in this time he will need to do /is leave and /is restart then /is confirm to get into new island of him.
Hopefully this 2 plugins can added into the aternos list because they now still consist in the bukkit page.