Eh, sometimes, Dtilt to Dancing Blade is a combo. Sometimes Dtilt to Fair is a combo. Sometimes Fair to dtilt is a combo. Jab to jab is a combo. Fair to ftilt is a combo sometimes. Uair to Usmash/utilt can be a combo. Fair to Dancing Blade can be a combo. Uair to Dolphin Slash can be a combo if the Uair is autocancelled (not advised.) Dair to Usmash is a combo if you Dair someone through the lower platform on Battlefield, and tip. Fthrow to grab is a combo. Dthrow to grab can be a combo. Dancing Blade is a combo. Fthrow to Fsmash is a combo. Dthrow to Fsmash can be a combo. Dtilt infinitely combos against a wall, and combos into many other things. Under the stage, First hit of Dancing Blade to Dolphin Slash/Fair is virtually a combo, since the option of airdodging is nullified.
Of course, this is dependent on opponent characters and percentages. Also, by using walls, ceilings, or items, there are many more combos.