Matter Cluster

The Matter Cluster is an item added by Avaritia, created when the World Breaker is used in "hammer" mode. Right-clicking with it in hand will empty its contents into the player's inventory, or onto the ground if it cannot fit. Hovering and shifting over the Matter Cluster in the inventory will list its contents.

The Matter Cluster is only dropped when the player is in survival mode; in creative mode, blocks are destroyed but not dropped.