Egg wars Item

Hello!I'm japanese. I love Egg wars. I would like to add some items to it. I will explain them now. The first one is Fireball. The second is a water bucket. The third one is the ender pearl. Finally, I have one more suggestion: I would like to be able to set armor and upgrades (protection, sharpening, etc.) in Egg Wars so that they do not reset upon death. The above is my suggestion, please give it to me!