Strength – Minecraft Wiki
Strength is an effect which increases attack power. Increases melee damage by 3 × level in Java Edition. Negative levels decrease melee damage, with attacks being ignored entirely if damage would be 0 or lower. In Bedrock Edition, melee damage under the Strength effect can be found through the equation B a s e D a m a g e × 1.3 l e v e l + 1.3 l e v e l − 1 0.3 …