So something weird kind of happened...
I was playing Minecraft for a youtube series when this zombie walked up to me. He didn't burn in sunlight or take fall damage. I was using a resource pack where you could randomly get minions so at first, I thought that he was of the "Miner" archetype because he gave me coal, iron, and even four diamonds! But things got weirder. I was mining obsidian when he gave me a potion of Swiftness II with four minutes. When I told my friend this on Discord, he said that the 'zombie' would need a brewing stand in order to do that.
The zombie pulled out a brewing stand.
I captured this all on my youtube channel, NedStarkX, and there's a lot more that happened like he started giving me spawn eggs and changing form into snow golems, wolves, and cows that would attack me. Do any of you know what's happening?