Upwards Smash is really just a subset of smash, and nothing uses it heavily at the moment, but a lot of wheels have some, Flash does, for example, but it's regular smash is far more noticeable. Smash attack is obviously flash, of course, and destabilisation isn't a category, height and spin direction are more important, but the wheels that are used with that intent the most would be LDrago Destroy and LDrago Guardian, against 230 height opponents, generally.
There are no Spike Attack MW's (if anyone says variares then they don't know what spike attack is), and no effective Upper Attack or Force Smash MW's right now.