Kirby (SSB)/Down special
Overview
The special move's name is Stone, where Kirby transforms into a rock (an ability from most Kirby games, becoming impervious to damage and knockback outside of grabs for the entire move's duration (exactly like a shield). While in stone form, Kirby can't move or attack until he reverts back to normal. Either simply waiting three seconds or pressing the B button will cause Kirby to revert back to normal. If the move is used on the ground, Kirby won't move, though if used in midair, he will fall to the ground quickly. If Kirby lands on a sloped surface (such as the left side of Hyrule Castle) during the move, he will slide down it.
The move can't be used offensively while grounded, being unable to hit opponents unless Kirby uses it in the air. However, it does 20% damage and great vertical knockback. The move is rather useful for countering juggling from opponents, especially air juggling, as the strong vertical knockback of the move can easily KO unwary opponents, or even more competent opponents if used unexpectedly. However, the pretty slow startup makes it a bit less effective. Additionally, if Kirby lands and misses the opponent, the move has very high ending lag (even if immediately cancelled), being very easily punished by almost any move.