Man, I forgot about how crappy the training mode is on this game. No option to set the opponent to dummy, but at least you can put the training mode to 2p and have the second opponent pick and just stand there.
Random notes for people who don’t know where to start:
You can cross over to the other side of people if you dash through them. A bit dangerous, but good to know.
The juggle system is kinda wonky with this game. A lot of people can combo after their sweeps, but recovering in the air to avoid juggles is almost random. If you are knocked into the air, press a button a bunch of times and if you’re lucky during some juggles, you’ll recover. If you hit someone with a normal when they’re in juggle state, they will recover and it’ll end the juggle. This is why you would want to juggle with special moves unless you’re trying to set up a certain pressure game.
All the characters have one move that is just a series of regular attacks (the FAQ on the front page actually lists these moves). These don’t do block damage but are vital to a few characters for block strings, while others are ass.
Clashes occur when two attacks collide (I forget the requirements) or two people dash together. At this point, both people back off then dash forward initiating a bunch of hits. The person who mashes harder wins. 
Some characters have transformations to different forms. I would avoid these moves personally since they drain your special meter until you run out, then your stun meter is brought up to full bar, which means one more hit will make you dizzy.
Speaking of the dizzy bar, if you get someone dizzy during a combo but still hit them during it, the dizzy meter resets to zero. (super lame, but the game’s damage output is pretty high so I can forgive this a little)
Desperation moves are available when you’re almost dead. You’ll know when you can do it when your special meter is flashing. A lot of these are invincible on startup and do shitloads of chip damage, so they can end matches if the opponent isn’t careful.
lol, I’m sure I have more but I think I’ll take a breather while people try to figure out stuff. Get hype! Emblemlord, lemme know when you’re available to play. I’m fiending to play this with someone who knows how to play.