There’s also one resource slot that contains three resources. While offhand items
boost your health and weapons boost your attack power, they both have abilities
that are passive. These abilities can be unleashed during attack. Some resources
must be crafted with the anvil. Two of these items are Paper and Cobalt Stone.
These can also be dropped from boss levels.
Re-rolling after crafting
Keep in mind that items with more stars have better stats. Every reroll costs you 1
friendship essence and also provides you with the chance to reuse the same
ingredients/resources to get the same item, but with improved stats if it receives
more stars.