Manipulative mobs!

So, probably something that lots of people want is an easier way to make mobs. Sure, you can use a mob spawner, but it's a long process of getting a silk touch pickaxe, finding a dungeon, getting past all the mobs, getting the heck out of there with that mob spawner, and making it out alive. It's hard. Not ender dragon or wither hard, but... hard. Difficult. That's why you could have manipulative spawn eggs to spawn a mob wherever you'd like. That'd be pretty cool. You could kill them after you spawn them with a looting sword and you got yourself easy resources.

I have two thoughts about how to get these.

Method I: You could craft an empty mob spawn egg, go out, find a mob, and capture it in the spawn egg. It will now say "Manipulative ____ Spawn Egg." Then, you could place it wherever you like.

Method II: You could craft a spawn egg using a mob drop from the mob you'd like, put it next to an egg in the crafting table, and you have yourself a "Manipulative ____ Spawn Egg." Then, you could place it wherever you like.

Now, and I've been saving this for last, you could actually manipulate the mob properties. You could change its hostility, whether it's tamed or not, its speed, the blocks and mobs it's afraid of, its health, its size, its color, and even if it's able to be bred, along with so much more! This, of course, would be for roleplay aesthetic only, so maybe you could only use this manipulative menu in creative or if cheats are enabled, just so you're not OP in survival mode.