Razor Leaf

Razor Leaf (, Leaf Cutter) is Ivysaur's side special move. Razor Leaf is also used by several non-playable Pokémon in the series.

Overview
When this move is used, Ivysaur sends out a single large leaf as a projectile, which flies horizontally forward, disappearing after about one second. The leaf's trajectory curves randomly by a moderate amount; for example, it may fly slightly downards mid-flight and upwards near its end. Although the leaf can only hit a given target once, it does not disappear upon hitting a target, allowing it to pierce through and hit multiple targets.

The leaf has three levels of power based on how long it has been active and thus how far it has traveled. It is most powerful for the first third of its lifetime (8% damage), becomes weaker in the middle (6%), and weaker still towards its end (4%). The leaf hits for low knockback, with the knockback also decreasing with the power level.

The leaf can be flung farther by executing the move with a tap input of the control stick. This increases the leaf's distance and speed to about twice as much as when the move is executed with a tilt input. The leaf's other properties, such as lifetime and power, remain the same regardless of input.

Use by other Pokémon
There are also Pokémon other than Ivysaur that have used Razor Leaf:
 * Venusaur - When Venusaur appears on Saffron City, it shoots multiple Razor Leaves in one direction, racking up damage and causing moderate knockback.
 * Chikorita - Chikorita appears as a Poké Ball Pokémon in Super Smash Bros. Melee and Super Smash Bros. Brawl, where it uses Razor Leaf in similar fashion to Venusaur. Chikorita produces the leaves by shaking the leaf on its head. These leaves have minimal knockback, allowing for better damaging capability than Venusaur's. Despite the existence of the hit effect in Brawl, these leaves use the slash effect.
 * Snivy - Snivy appears as a Poké Ball Pokémon in Super Smash Bros. 4 and Super Smash Bros. Ultimate. Its Razor Leaf works similarly to Chikorita's, but the leaves are more spread out.

Origin
In the series, Razor Leaf is a physical Grass-type move introduced in  which consists of the Pokémon shooting a flurry of leaves at the opponent. While weak, it has an increased chance of dealing a and can hit all adjacent opponents in a double or triple battle. Ivysaur can learn Razor Leaf at level 30 in Pokémon Red and Green and has continued to ever since.