Unknown I'd gladly fight the wither with you, I'll try to bring cep and well need a little obsidian hut and flat land,the hut is so we won't die if we're low on health.
I will fight them with you if you haven't fought it yet and but first i might want to get some golden apples and maybe trap the wither somewhere where we can shoot arrows and attack it with swords trap it in like a small space.... nvm about that if the server enabled mob greifing then the wither will just blast through that (GOLDEN APPLES) will be a good replacement for potions but it will take a lot to make will notify if i find any wither skulls