This is just some random idea for a new sword line. It's called the "[Insert name here]!!" (Yeah, i'm not too big on naming...) Basically, it's a sword who's charge attack leaves a floor hazard (patch of fire, ice, shocking goop...) It would be similar to the brandish line, doing normal and elemental, w/ a 3-swing combo (or even 4-swing just so they aren't near identical). Higher stars and levels would allow for a larger range of the hazard, as well as a longer time it lasts on the ground.
Not really expecting this to be implemented at all, just an interesting idea i thought up ^^