Quote from Princess_Garnet»
^ Would very much be interested in seeing that if/when you ever do it. I've never done anything with mob spawners I find, and I tend to veer away from things that lean towards outright farms, but that's something built around one I could see myself maybe doing.
Sure, I can post screenshots about it on this forum when it is done, in the thread "what have you done recently?"
Figuring out the logistics of it though is something I have not worked out fully, the obsidian would protect the arena itself, but not the main entrance
Would a waterfall stop a Creeper going near the Iron Doors? I am not sure, that part I never tested and I have never seen anyone else do their farms like that either.
Bedrock edition doesn't show the light level, outside of developer or beta builds, there is no way to get the debug screen up that I know of that would show light level on a given block. Java edition has this with a simple press of a key, F3.
So figuring out the lighting system to allow mob spawns but at the same time not make the place too dark that you can't tell what is going on is going to be the other hard part about the design. And if the lights are too close, Creepers can destroy them.
Using the mob spawner itself to force the hostile mobs through a tube will be the easy part though, all you need is running water,
and they will be carried along the current to the arena and water can also be used to prevent their fall damage, and if setup properly they won't drown,
so the battle arena would provide a proper challenge.