Everpasses are different progress tracks for the event: one is free, and the others can be purchased. All of them give rewards as you advance through Everdeep: the farther you go, the better the rewards!
You can also earn exclusive items, including Chaos and Order Essences, as well as Fragments for special Super Managers that are only available through the Event.
Here is a list of possible rewards obtainable in Everdeep (correct as of DATE):
Common Token
Purpose: open Common Briefcases
Where to use: "Fragment Briefcases" island
Rare Token
Purpose: open Rare Briefcases
Where to use: "Fragment Briefcases" island
Epic Token
Purpose: open Epic Briefcases
Where to use: "Fragment Briefcases" island
Mystery Boost Ticket
Purpose: exchange one for a random Boost token from a pre-determined pool
Where to use: Shop
Super Mystery Boost Ticket
Purpose: exchange one for a random Boost token from a pre-determined pool
Where to use: Shop
Blue Power Crystal
Purpose: reduce the Gem cost of Super Manager Level Ups
Where to use: “Super Managers” island
Red Power Crystal
Purpose: reduce the Gem cost of Super Manager Promotion
Where to use: “Super Managers” island
Elemental Giant Pouch
Purpose: contains Elements with guaranteed Epic and Legendary Essences
Where to use: “Super Managers” island
Elemental Big Pouch
Purpose: contains Elements with guaranteed Epic Essences
Where to use: “Super Managers” island
Elemental Pouch
Purpose: contains Elements
Where to use: “Super Managers” island
Chaos and Order Essences
Purpose: Craft Super Manager Fragments
Where to use: “Super Managers” island
Super Manager Fragments
Purpose: used to unlock a new Super Manager or rank up the one already unlocked
Where to use: “Super Managers” island
You will also be able to obtain some Fragments of exclusive Super Managers: Adamantus (Epic) and Drethos (Legendary)!
Super Cash
Purpose: Premium Currency
Where to use: in the game, to buy various items or unlock Rock Barriers.