To understand what the AttributeFix mod does, you first have to understand what "attributes" are. Attributes are values given to different properties related to items and entities in the game. This includes properties like the maximum health of an entity, movement speed, weapon attack speed and damage, armor toughness, luck, follow range, etc. The attribute system basically allows you to configure the values of these properties. Want zombies to have their maximum health raised to 100 hearts? This system lets you do just that.

But for some reason, the game puts a limit on the values that you can give to these attributes. So even if you give a mob higher max health, the actual values are much lower. Let us understand this using an example.

Understanding The Attribute Limit

First, give yourself a sword with 5000 damage using this command:

/give @a golden_sword{AttributeModifiers:[{AttributeName:"generic.attack_damage",Amount:5000,Slot:mainhand,Name:"generic.attack_damage",UUID:[I;-12454,17070,183450,-34140]}]}

Then summon a mob(here, spider) with 10000 health using this command:

/summon spider ~ ~ ~ {Health:10000,Attributes:[{Name:"generic.max_health",Base:10000f}]}

Sword and Mob

5000 damage sword and 10000 health spider

If you can work out the simple mathematics, the 5000 damage sword should kill the 10000 health spider in two hits. Conversely, this also means that the sword should not be able to kill the spider in one hit. Let us now hit the spider.

Striking the Spider

The spider dies with a single hit

The issue is now very clear - A sword that can deal a maximum of 5000 damage has killed a mob with 10000 heath in a single strike. This is where the AttributeFix mod comes into action.

The Fix

Let us now re-do the same experiment. But this time with the AttributeFix mod installed.

The First Strike

The spider survived

As you can see the spider has survived the first strike, unlike in the previous case. Let us strike a second time,

The Second Strike

The spider is killed

The second strike has killed the spider. This is the expected behavior - Two strikes with a 5000 damage sword has killed a 10000 health mob in two striked (5000+5000=10000). As you can see, the AttributeFix mod has fixed the issue.

As you can see, the AttributeFix mod has fixed the limitations of the attribute values. The mod basically increases the limit to a reasonable level. If you are someone who has faced this issue, download the mod using the links provided in the Downloads tab.

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AttributeFix