Leech Life

In Pokémon ChampionsGen I

Game

Pokémon Champions

BugPhysical

User recovers 50% of the damage dealt.

Power: 80
Accuracy: 100%
PP: 10
Hits: One Pokémon next to the user
On Showdown: 2.4% of Champions VGC Pokémon run it

Changes over time

How Leech Life changed from game to game, newest first.

Gen VII
Power 20 → 80 Buffed
PP 15 → 10 Nerfed
Gen V
… HP lost by the target, rounded ~~dropped: down.~~ added: half up. If Big Root is held by the user, the HP recovered is 1.3× normal, rounded added: half down.
Gen IV
… lost by the target, rounded down. added: If Big Root is held by the user, the HP recovered is 1.3× normal, rounded down.

Numbers: PokéAPI’s changelog. Descriptions: Pokémon Showdown’s for each generation, PokéAPI’s notes where Showdown’s don’t differ. Champions: Pokémon Showdown.

See it in the games

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How it works in Champions

The user recovers 1/2 the HP lost by the target, rounded half up. If Big Root is held by the user, the HP recovered is 1.3× normal, rounded half down.

Makes contact
Healing: stopped by Heal Block

“The user drains the target's blood. The user's HP is restored by up to half the damage taken by the target.”
In-game text, Scarlet & Violet

Good to know

Makes contact: Rough Skin, Iron Barbs and Rocky Helmet hurt the attacker; Protective Pads prevents it.Contact moves
Heals the user by 1/2 of the damage dealt. Big Root heals 30% more; Liquid Ooze hurts the user instead.Draining moves
Healing move: Heal Block stops it, and Triage gives it +3 priority.Healing moves