I'll probably add to this list as I think of more but here's some of the basics I stick to.

-Always use the map to your advantage -The computer is way less likely to block vanishing rushes so mix them in whenever you're stuck -I never got enough time to test it, but melee power ups could be useful in tournaments, maps without a floor level, and handicap matches -You should probably check if your character has wild sense or afterimage. (pussy strats I know but waaay better than getting 14 pieced in the middle of a run lol) -My basic strategy for every fight is essentially combo until you have enough ki to super attack and repeat; however, this may not work against every character so sometimes I continue to punish with rushes to get the job done. -Learn at least one way to catch the opponent with a super attack and it will take a lot of pressure off of you. -A lot of times if you begin to charge your ki with a good amount of space between the AI, the opponent will do the same. This creates a window for a super or ultimate attack if you execute properly.