dash attack to reverse bair works well if they DI away, if they DI up go for uair and see if you can string a few more in, uair to uair doesnt really combo until mid percents
utilt is pretty good, the problem is landing it, best used as an anti air and then chasing your opponent with uairs or bairs
nair to jab works at any percent, at mid percents you can combo into ftilt or dtilt. sour nair also combos into jab at mid percents
fair doesnt really do much until 80% and up, it can combo into itself letting you carry your opponent a distance, but youll only get 2 in before landing. pretty sure by catching your opponent in the air it can combo at earlier percents. it also combos into jab and ftilt, but again, not til late percents
uair doesnt have much landing lag and you can likely land another uair or maybe some fairs or a nair
and thats really it for standard attacks that can combo, now for some unorthodox things. grabs dont get us much, down throw to dash attack is all right if you can start a tech chase, but theyll likely just jump out. i try to only go for grabs during a hydrant dash. if you land the grab sometimes youll be pushed forward a little by the water after the grab animation finishes, getting you closer to your opponent than you would have been without the water pushing you. what you can follow up with is really situational and you'll have to react quickly, i almost always go for down throw and then utilt since ill be directly under them thanks to the hydrant. but jab works well too and is our quickest standard attack. there are other possibilities for combos with the help of a hydrant dash, ive been able to get 2 full jab combos this way, multiple ftilts, ftilt to an aerial. you can cancel any attack by hydrant dashing off a ledge, and that can lead to aerial combos. hydrant dashing is good because it lets you approach your opponent at high speed without much risk. wish i had a way to put video footage of this up easily.
beside that, our combo game really excels with fruit, you can connect almost any fruit out of dash attack provided you follow their DI, and then catch that fruit to set up for z drop combos. dash attack is also safe against characters with slow grabs, you can safely trampoline away if they shield