The art of runecrafting allows the user to upgrade socket stones using lesser powerful variants, transforming them into stronger and more potent versions which can be applied to items with an empty socket. Sockets can be applied to equipment items but only a handful of merchants are skilled enough to perform the task, as such, they tend to charge a hefty fee for such a specialist service.
Similar to runes, Ultra Marbles can also be upgraded into an Ultra Orb - a much more stable upgrade source that allows a player to apply additional stats to their equipment without the risk of breaking. The same method of upgrade is used; three of the same type must be combined together to produce the Orb. Players may optionally substitute one or two Marbles with a Mystery Marble alongside an Ultra Marble to upgrade it to an Ultra Orb.