I've landed it several times in tournament but I'm not aware if the lucario was able to beat it or not.
@scaremi
If he's rolling every time you jump then don't commit to a jump. Stay grounded. If you're PSing AS and he's coming in for grabs then after your PS try to jab him, pivot grab, or dash back > dancing blade. Learn the timing to PS a C-sticked fsmash. If he mixes up charging/uncharging his fsmash then learn its range, stand just outside of it, and punish it with dancing blade. If you move lucario to the edge of the stage assume he's going to attempt a roll to get away and punish it. If he's doing the full jab combo I believe you can DI down and shield or simply DI out and fair him. If he's going for jab cancels I'm not sure how to punish that yet, but I'd imagine you can dolphin slash him. Your main goal against lucario is to get him offstage and edgeguard him. Dancing blade and fthrow > fsmash at 0% are great to get any character offstage, but don't fish for the grab at 0% too much. Edgeguarding with fair and bair are really good against lucario. If you grab the ledge and he tried to upb to the stage, try a ledgehop bair/uair. If you're on a stage he can wall cling to and he's recovering from below, drop down > fair/dolphin slash regrab are good. The main things against lucario are to stay grounded, don't commit to things too much (punish), and get him offstage.
Hope this helps!