Baby Guardian pet

The EnderDragon, you are going to face it because represents the end of the game and also leaves an egg with which you can probably have a pet dragon, the Wither Boss, provides you a star that allows you to create an epic and powerful block, the Elder Guardian gives you a simple sponge,
what I want to reach with all of this, the Elder Guardian needs an individual reward in addition to a sponge, so I thought:
A BABY GUARDIAN.

-When you kill an Elder Guardian, there is a 34% chance that will drop an egg that you can place in the world.

-To get the egg to hatch you need to place some sponges and prismarine blocks near the egg, you
will have to wait two nights to hatch and you will have a baby guardian pet that will follow and defend you.

-The baby may inflict extra damage to the drowneds, he will swim without problems through the bubble columns and the other guardians don't want to attack him, but he yes.

-If you get out of the water he will try to follow you by jumping like a normal guardian, but if you want to avoid problems, you can transport him in a bucket.

-Feed it with fish to heal him.

-Maybe it could give you the "haste" effect for one or two minutes when you feed it with a tropical fish, so if you want the effect again, you will have to wait 5 or 6 minutes to give it another tropical fish.

Thanks you for read my post and forgive me for my level of English.