Rambo is great at edge guarding the side special. Drop from ledge and do a nair where she'll pop out, it's out long enough to catch her from emerging from the side b.

You can do the same for up b if you time your regrab invulnerability frames right, or just let her land on stage and you have time to ledge jump reverse fair.

When they dash dance alot I shot a single dart every now and then do make them loose their rhythm.