D throw>Cross Slash seems to work consistently at low percents, so if you throw in a couple pummels, you get a free 0-to-35ish% out of it. I believe it works up to around 15% with middleweight characters. You just have to remember d throw places the opponent behind you, so throw out your CS in a reverse direction.
Just a head up this is very easy to escape, this is only something you should go for if the opponent is big bodied and or likes to panic nair to get out of combos that aren't true.
Some reliable combos to do:
Jab combo-> Dash attack (Works if they don't tech)
Bair->Cross slash (True combo)
Fair->Clim Hazard/Cross Slash/Down Smash (True combo if close with fair)
Fair->D tilt-> Up air or up-tilt (D-tilt is true, but after that you need to see how they react, uptilt will catch them if they aerial attack, upair catches if they jump)
Fair/Bair -> Dash attack (Reliable at early->mid %'s)
Fair (Stage Spike) -> Fair/Upsmash (True Combo)
Short Hop falling Up-air on tall characters -> Full jump dair (True combo & spikes off edge)
Back throw off edge -> Suicide Climhazard (Works a lot more than it should)
Back throw-> dash attack if they don't tech, or run up down smash if they tech in.
Sour spot full hop dair -> Full jump Nair -> Second jump Up-air (Is true at certain percents versus some characters)
Nair (Intercepting jump) -> uptilt -> up tilt -> uptilt/up air. If they jump, follow them and catch them with another up-tilt or d-tilt to continue juggle.
Nair->2 jab lock on missed tech->Cross slash
Back air -> Off stage Limit cross slash (Not true but catches people waaaay more than it should)