# Improving the "Luck" parameter

The player can increase the "**Luck**" parameter of a collectible item using the corresponding workbench. An installed Artifact of the same rarity as the item or higher is required. To increase the "**Luck**" parameter, the player needs to:

* Select the collectible item that they want to upgrade in the workbench.
* Spend the corresponding amount of [Catolyst](/game/economy-overview/catolyst.md) (the amount will depend on the level of the "**Luck**" parameter).

The upgrade is instantaneous. The level of the "Luck" parameter on the item cannot exceed the level and tier of the collectible item. In a similar way, the level of the "Luck" parameter cannot exceed the level of the workbench where the upgrade takes place.

Increasing the "Luck" parameter for an item, will increase the drop chance of tokens when using that item on adventures.


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