Shadow Keebey
Smash Hero
But Hammer and Stone are the best (read: most OP) abilities.Apparently Sakurai thinks all Kirby needs to beat Top Tiers is to hit people with Smash Attacks and Hammers.
In the Kirby games.
In Smash, well, Hammer is plain useless outside of SUPER hard reads & punishes, and Stone, although more useful, is still pretty weak in terms of being good.
And then Smash was taken into Kirby:
To actually buff those moves in a way which would make them usable, the frame data would have to be much better.