Potency

It has been suggested that this page be merged with Effect.
 [discuss]
If this merge affects many pages or may potentially be controversial, do not merge the page until a consensus is reached.
Reason: Potency is not a mechanic by itself, existing only as an extension of status effects. It has no interaction with other aspects of the game.

A status effect's potency is how strong or effective it is. Some effects do not get stronger as its potency increases, but most do.

It is not possible to apply the same effect multiple times, even if they are of different levels. When applying an effect already active on the player, higher levels overwrite lower levels, and higher durations overwrite lower durations of the same level.

In Java Edition, when a stronger version of an effect is applied to an entity that already has a weaker version of the same effect, the weaker effect remains, but is hidden. The weaker effect returns after the stronger effect expires, if the weaker effect has a longer duration. In Bedrock Edition, when a stronger effect overrides a weaker effect, the weaker effect is deleted and does not return.

Effects that scale with potency

Doesn't scale with potency
Has a capped maximum
Only capped by command limit
Effect Potency maximum
Speed 256
Slowness 7
Haste 256
Mining Fatigue 10
Strength 256
Instant Health 32
Instant Damage 256
Jump Boost 256
Nausea 1
Regeneration 6
Resistance 5
Fire Resistance 1
Water Breathing 1
Invisibility 1
Blindness 1
Night Vision 1
Hunger 256
Weakness 256
Poison 5
Wither 6
Health Boost 256
Absorption 256‌
4‌
Saturation 256
Glowing 1
Levitation 256
Luck 256
Bad Luck 256
Fatal Poison 5
Slow Falling 256
Conduit Power 256
Dolphin's Grace 256
Bad Omen 5
Hero of the Village 256
Darkness 1
Trial Omen 1
Raid Omen 5
Wind Charged 1
Weaving 1
Oozing 1
Infested 1

History

Java Edition
1.513w09bUsing /effect the player can now apply potion effects to other players, with a maximum value of 4.
13w09c/effect now has a level limit of 255.
1.6.113w23aRegeneration has been increased from level 1 to 2 on the normal golden apple, and increased from level 4 to 5 on the enchanted golden apple.
1.20.524w05bPotion effect amplifiers are now restricted between 0 and 127.
24w06aPotion effect amplifiers are now restricted between 0 and 255, with amplifiers for Mining Fatigue, Jump Boost, and Levitation being replaced with player attributes.

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