I was recently playing on skyblock for the first time, and then while I was just minding my own business, I see someone named F1NN5TER flying around me. I assumed it was just an admin or something checking on things so I just kept mining my cobblestone. And then he or she spawned a bunch of mobs everywhere. And then they send an Ender Dragon flying straight through my island.(Now I don't have saplings or my infinite water source.) After that, they proceed to blow me up with tnt in minecarts and kills me. Please help.