You are going to need a lot of blocks for this build so you should better get to farming. As for the blocks themselves, you can pretty much use anything. Cobblestone and Wood are the most common ...
YouTube on MSN
All mob creeper farm with storage and safe access
Learn how to build an easy all mob and creeper XP farm in Minecraft 1.21 using a clean survival-friendly setup with safe ...
Results that may be inaccessible to you are currently showing.
Hide inaccessible results