Type Bug
Category Physical
PP 15 (max. 24)
Power 20
Accuracy 100%
Generation I-II
Leech Life inflicts damage, and up to 50% of the damage dealt to the target is restored to the user as HP. If this attack deals 1 HP of damage, 1 HP will be restored to the user.
If Leech Life breaks a Substitute, no HP will be restored to the user. If HP is restored to the user when its current HP is greater than its maximum HP, its current HP will be set equal to its maximum HP.
In Stadium, Leech Life will always miss if the target has a Substitute.
Generation III and on
If the target has the ability Liquid Ooze, the user takes damage instead of restoring HP.
In Generation IV, if the user has the Big Root as its held item, Leech Life saps 30% more HP than it normally would. The item does not increase the damage dealt by the move, however. All other effects remain the same.