Weakness

Weakness is an effect that decreases attack damage. It is required to cure zombie villagers.

Melee damage inflicted by the affected entity is reduced by 4HP × level in Java Edition. Negative levels increase melee damage dealt.

In Bedrock Edition, melee damage under the Weakness effect can be found through the equation BaseDamage×0.8level+0.8level−10.4 where BaseDamage is the default attack damage with whatever weapon or tool is used to attack.[note 1][note 2]