@ATL Jones Bro3
So lets look at more specific instances. Also, some more information.
Information
First off BF3 is no longer shield bash, don't think of it like its a lesser shield bash it is just a different tool. Use it similar to Flashes old head butt. As a punisher or trip guarding when they try to jump or dash away.
Jump 1 and 3 become godlike. Flight plus J1 lets you be more lenient on position when using it. It also combos directly into f23 if you see the opportunity. In addition, if you suspect a block you can d4 or b2 50/50 for small gains but way better positions. J3 straight beats a lot of anti airs that you couldn't beat before.
B2 and F2 most people understand this to be an upgrade so I wont detail it.
13xxFlight > 1 Now works anywhere on the screen opening up your meterless damage and pressure.
Deadshot Example
You are not going to win a fire fight against him anytime soon. Rendering most of your plasma options useless. I still use mb jump shot to gain space from time to time, but you cant maintain that since you wont be gaining as much meter if you stay in plasma form.
When you do get the knock down you can plasma some for a little more meter gain as he has to hold 2 plasma and you can mix it up with an air plasma.
Shield bash is no longer an advantage to use as he will typically be backing away from you rather than mauling you. That is when most people use it.
These are the two tools you have lost. Now to what you gain.
You can now punish his Trick shots with your BF3 which is great.
Your new range on f2 allows you to just get in at half screen now instead of getting all the way next to him.
Your new J3 and 1 he has to hold that now since dead shot cannot effectively anti air unless he goes for an air to air in which he will have to guess you are jumping or still lose.
If you do get in close you can build meter with strings now that are plus like his 13 flight cancel now works anywhere with his j1.
Your new 21, B2 and d1 force him out of close range now. Before he would be able to more easily contest up close, but now you can literally stand outside of his b1 range and hit him with either of these.
Personally, I have found that is spend 50/50 in blade form because of these advantages.