# Expansion for MCItemDefinition

Additional methods for easier modification of item-related loot tables.

## Methods

:::group{name=addToolModifier}

Adds an [ILootModifier](/vanilla/api/loot/modifiers/ILootModifier) for everything that uses this item as a tool, such as block breaking.

Return Type: void

```zenscript
MCItemDefinition.addToolModifier(name as string, modifier as ILootModifier) as void
```

| Parameter | Type | Description |
|-----------|------|-------------|
| name | string | A name for the loot modifier. |
| modifier | [ILootModifier](/vanilla/api/loot/modifiers/ILootModifier) | The loot modifier to add. |


:::




Parameter	Type	Description
Parameter name	Type string	Description A name for the loot modifier.
Parameter modifier	Type ILootModifier	Description The loot modifier to add.