Equipment requirements
Some items have equipment requirements. Before an item is placed in a slot, the game checks combat level and, for weapons, mastery type and active mastery level. The item card shows the required combat level and mastery when applicable. With a mandatory requirement, the item cannot be equipped until every condition is met; the inventory shows the exact reason and your current level. With a soft requirement, the item can be equipped but combat accuracy is penalized. An already equipped item can always be removed.