# Mining by collections

![](https://2899911238-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FVDVbokQkVXRUwi7OOoNU%2Fuploads%2FO3x6xVcrxXJ5i0AVSI3B%2F30.-mining-by-collection.png?alt=media\&token=bdf0e072-7af4-40b5-bbcf-6449be60db81)

Mining by collections is the second Click to Earn mode in Blood Holders and the most advanced way to obtain $BLOOD in this mode. Users will create combat squads using the collections of weapons of the same type that they acquire. These squads will go on a daily expedition where they will get a reward based on the difficulty of the area explored.

* **How it works:**

1. Collect a minimum of 3 weapons of the same rarity, color or theme.
2. Create your squad.
3. Send your mission squad to one of the zones available. The difficulty of the expedition will depend on the weapons your squad have.&#x20;
4. If your squad is successful, you will receive a reward.

![](https://2899911238-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FVDVbokQkVXRUwi7OOoNU%2Fuploads%2FOGZ19VqUrQFk9dtybtI5%2F32.-mining-by-collection_tabla.png?alt=media\&token=9b93d6a1-219b-47a1-bba7-84bbdfcaa07c)

{% hint style="info" %}
Each squadron can perform a mission every 24 hours, for the completion of this mission it is necessary to provide the squadron with the minimum supplies to survive. The maximum number of weapons per squad is 7, being able to obtain a survival bonus if the 7 weapons are different within the same rarity, color or theme.
{% endhint %}

{% hint style="warning" %}
Each squad type has a maximum number of times they can be sent on a mission until their weapons are rendered useless. Once this limit is reached, the squad will not be able to carry out expeditions and the user will have to pay a repair cost if they want to use it again.
{% endhint %}
