Perhaps I put that wrong: 214A, 214B, and 214C are all the same special with different ranges, how are you supposed to note it when you can choose A, B, or C?
The way I've been lead to understand it, a hit-confirm is an attack you can use and make sure it lands, input a Super, and be guaranteed that the Super will connect. If you can make sure the first hit of the DD (that "Iron-Man Hitbox") connects, the rest of the attack will connect. I have surprised some people with this.
Plus, like I said, tips for the absolute scrub of the scrubs. Thus, mission combos. Plus, I see Mission #7 style combos a lot, specifically 2C>3C>22B(or whatever variation of that you're using)>3C>8D. That finds it's way into lots of shit. If you want to be better than the bottom of the barrel, you're eventually going to evolve past the mission combos.
. . . It occurs to me this post would've been better for the beginners thread. I just recommended things I've had success with. Sorry.