Okay, watched the first two Episodes.
Lucky Charm:
The lucky charm comes with a "Ladybug Vision". That might simply be a Cinematic technique, or simply part of how the power works. A VPP does seem - "spot on"
Besides that, she uses it extensively as a form of Stretching/Telekinesis. She swings like Spiderman and agianst Mr. Pigeon she made two attempts a ranged grab, with one connecting.
Cataclysm:
Some kind of Focus/object destruction. "RKA, NND, Does Body" would work. As would be any Penetrating attack of sufficient Magnitude. Or even a Dispel defined as "object destruction".
Aside from the powers from their Miraculous, both also have high levels of Parkour skills when transformed. Wich is fitting as that comes from france.
They could have some low endurance cost movement powers to simulate that. Stuff like "Flight, only what Pacour could do".
They might also have increased strenght, as they are often fighting Augmented Grown up villains. But it might be that the "Gimik" the Adults get ruins any semblance of them still using their Adult powers (being stronger then children).