A set is a conjunt of equipment. The upcoming sets are based upon the availability or strength of the equipment in the set.
Note: You can press on the image of an item for further informations about it.
The Mid-Level Set is a more basic, cheaper equipment set which is used by many players.
The High-Level Set is a equipment set comprised of powerful and expensive items. It is one of the best sets of equipment for players.
The Dream Set is a equipment set comprised of the most powerful and expensive items. The items are all very rare, some being available but very expensive, others obtained only by a few players.