Hey guys!
So, I found out that if you play as Luigi, you can end your dash in a number of ways, most of which leave you sliding along the ground (in "slide lag", doing an attack, shielding, or grabbing).
If you shield to finish his dash, you can do a shield grab while sliding, allowing him to (I would think) get some nice grabs. I could also see this facilitating a chaingrab with forward throw at very low percents.
Do you think this is useful or helpful? Can you think of any other applications?