mutant infection

The infection starts if you build a shrine, made with nether rack and nether rite. Then it starts to grow infected vines. Vines start to grow slowly, any mob that touches it will slowly have vines growing on the mob. When the mob is fully covered it will turn into a mutant creature covered in the vines. When you stop all the infected creatures, and stop the infection, your world will be saved. But when you started the infection it spread into all the worlds, you only saved your world. You have to destroy it in every world before it is to late and all worlds  are destroyed and corrupted. If you win the fight you get an infinity sword with the enchantment called instant death.