On top of this, you(Stardastarly) could just use the Move Deleter to delete the HMs you don't need once you get to the league(Cut, Strength iirc).I honestly don't remember having to use Cut to proceed with B/W 2's storyline.
102 base power at max Happiness, which it will eventually get anyway.
Boosts the power & accuracy of Slam & Aqua Tail, as well as boosting the power of Leaf Blade & Return. You sure you don't want it?
It should, Aqua Tail is a great move for it.
I know, I never told you to remove them.
Same goes for Surf and Waterfall, both are strong moves you can teach to it as soon as you get the HM. Really, Aqua Tail is pointless, and by the time you get the HMs, the Happiness should be maxed already, giving Return its maximum 102 base power.
You still have enough time to breed a new one.....and that also means it should already knew Surf & Waterfall, making Aqua Tail even more pointless.
You have access to trading with White, use it. And none of them is a Tutor move. Payback, Return, and Toxic are TM moves, Curse and Iron Tail are Egg moves.
I strongly suggest not. Normalize heavily cripples Delcatty's coverage, it is so bad it's on the same trash can as Zen Mode.
Well you said you'll use it if you don't have any other option, so I gave you a set.
You get 10 red shards for free in....Nimbasa's Pokemon Center, if I recall correctly. It's definitely in one of the places before Driftveil, though.
That can be used to teach your Flygon the move Fire Punch.
In terms of base power, Strength is weaker than Return at max Happiness, and as a HM, like I said, Strength is useless once all the rocks are pushed down the hole.
There's really no point in keeping Strength after that.
Again, you have trading access with White, certainly you should already have the TM for EQ in your White.
I don't do Competitive or Subway battles so I never gave suggestions based on that.
....if you don't have access to trading, that is. But you have.
To be honest, getting a new Nature isn't that hard
Good luck on your playthrough, by the way. You have great team members