Team rater needed

[Tomatoman1]

Hello!
I wanted to make a strong team for a very long time, but I always struggle. Some help is needed. Movesets, IVs and EV aren't a problem, so please don't suggest them. Can somebody give tips and say if my selection of pokemon is good?

The pokemon I want are:
Physical Mega-Sceptile. 
I really like to run physical Sceptiles for some reason, and I will do it my way, even if he is weaker then.

Honchkrow.
This is very slow and defencifly weak pokemon, but there has to be a way to make it work, right?

Mixed Dialga.
I am doing mixed tiers, I think, but he has to be in here. He is one of my all time favorites. He is very strong both offensive and defensive, so that is why I want him mixed.

Luxray.
He needs to be there. Nostalgia. I remeber him as my strongest pokemon ever. I really want him on this team.

Milotic.
Great pokemon. Nice design, stats, abilities. I want this on my team.

Rapidash.
I know it isn't strong, but there has to be a way to make it work. Otherwise I will pick Ninetales.

Are these any good? Please let me kbow. I really appreciate the help.