"Once it catches the wind, it deftly controls its cotton-puff spores--it can even float around the world."
You might think evolving from a flower being to a spore being is a bit backwards, but you'd be wrong. In many ways, it's a step forward for Jumpluff. As the Pokedex notes, it can control those spores to go basically anywhere it wants. Add that to its attacks and you won't be thinking that this is a backwards evolution at all.
Jumpluff's Basic Attacks are Infestation and Bullet Seed, while its Special Attacks are Solar Beam, Dazzling Gleam, and Energy Ball.