obby - In Minecraft, obby is obsidian. It’s the block that gives yo

In Minecraft, obby is obsidian. It’s the block that gives you the worst headache when you can’t mine it.

I tried to mine that obby and my pick broke. I was so mad.

That obby blocked my way. I had to dig for 30 minutes.

I used obby to build a wall. My enemies couldn’t get through.