Making Friends w/ monsters idea √( •v• √)

I've been playing and loving Minecraft since kindergarten (I'm graduating 8th grade soon) and one idea I've had for a while now is "what if you can befriend a hostile mob by saving them?" For example, if you give a zombie or skeleton a shiny new helmet or fire resistance potion while their burning, they won't act hostile to you, and depending on the damage on the helmet or time on the potion will be how friendly they are! One thing I want 100% is to ride w/ a pack- herd..? Flock..? Haunting..? School..? Eh, whatever...- of phantoms! Oh- Almost forgot! If you name them, they'll hang around and be like a best friend! 

I feel like I was rambling in this, so I'm sorry if this is hard to read/understand.

Your pall, Shadowleaper<3