I find myself using this method against Hakumen a lot. like if he's trying to come in with j.B or j.C/j.2C. Just dash MJ and do 2C right after, then from there you're in a favorable position to do w/e you want and depending on what item you enhanced, you can totally screw up his day. It's kinda iffy against Ragna though. If they're a real douchebag, they'll just mash ID to stop whatever set-up you're planning, but if you can bait it out, they're totally screwed.
EDIT: I'm trying to keep things alive in here, please don't hate me. :<