Contractual Lockbox

Collect Contractual Lockboxes to unlock Mephisto''
 * ''"Sealed by a powerful Contract"



Contractual is a lockbox included with Special Operation 78. Obtaining all the comic book covers unlocks Mephisto. They are used to recruit Mephisto by collecting Comic Book Covers and completing the Contractual Collection.


 * Lockboxes can be purchased in the store at a cost of.
 * Lockboxes can be sold in the store at a price of.
 * Lockboxes can be opened individually at a 7% chance of obtaining a Comic Book Cover. 10 lockboxes can be opened together for a 100% chance of obtaining a comic book cover.

Contractual Lockboxes can be obtained by:
 * Completed SO78 Task 5. Rewards 10 Lockboxes.
 * Taking SO78 Group Boss Beyonder's 5% of his maximum Health. Rewards 1 Lockbox per 5% of Health.
 * Defeated the player's own Group Boss. Rewards 10 Lockboxes.
 * Defeated the allies' Group Bosses. Chance to reward (?) Lockboxes per Group Boss defeated.
 * Rewards 1 Lockbox for helping ally against the Group Boss. Appears in SO mission maps.