This Skyblock is from the original skyblock. I use it and modified and make it more fun with more islands and structures . This skyblock has 12 islands in overworld and 5 islands in the nether. and 3 structures in total

structures
-end portal castle
-fortress(with 3 spawner}
-abandoned ruined


Every islands in the overworld except frozen ocean and beach has one obsidian in each islands. which means you need to discover all the islands to get the obsidians and the last one is very far from spawns(abandon ruined). Ofcourse you can go to the end and fight the dragon and you only need 10 eyes to complete the gate.


This skyblock made in 1.18.1 version