The Leaf ability grants Kirby the power to to create and control leaves. He can perform many far-reaching attacks, as well as a special guard that renders him impervious to all attacks, much like Tac's hiding guard.
Kirby tosses a few leaves which swirl upwards at about 30 degrees in a broad spiral.
This move only throws two leaves, but can now be used in succession.
Hold button 1
Kirby spins in a twirl and can move about on the ground like Tornado with leaves spinning about him. The attack lasts as long as the button is held. This leads up to the Leaf Scatter attack.
Leaf Swirl, then release button 1
The leaves spinning around Kirby now fan out in a wide radius, ending the Leaf Swirl. Kirby is invincible when the move is initiated.
Dash + hold button 1
Kirby dashes with a vortex of leaves surrounding him. This move is very similar to Tornado's basic attack, but it ends after a few seconds.
Kirby performs a special guard move by hiding in a green pile of leaves. This lasts as long as the button is held.
↑ + button 1
Kirby conjures up a column of large leaves in front of him. It has a very quick starting animation and reaches quite high vertically, making it useful on aerial enemies.
(midair) ↓ + button 1
Kirby throws five leaves downward and forward while in midair, dealing moderate damage to enemies slashed by them.
Kirby now throws three leaves instead of five in a much narrower arc. It can no longer be used in quick succession.
It's time to dance! The Leaf Dance creates a gorgeous swirl of razor-edged leaves. Press A to Guard, and...huh?! You're gone!
Be a leaf on the wind with this sharp ability. Spin up a torrent of dancing leaves to slice and dice, or activate your Guard and-- Hey, where'd you go?!
In Other Languages
The meaning of the name of the Leaf ability is largely consistent throughout other languages. Its Japanese name is リーフ (Rīfu), meaning Leaf. Its German name, Laub, is slightly different, meaning Foliage. Aside from that, its Spanish name, Hoja, French name, Feuille, Italian name, Foglia, and Chinese name, 叶子 (Yèzi), all mean Leaf.
Leaf is one of four abilities with a voluntary form that makes the player invulnerable to nearly all forms of damage. The other three are Archer with its Camoflauge, Stone while encased in the rock, and Smash Bros., when using the Stone attack.
Kirby of the Stars Copy Ability "Leaf" Introduction Video