Relics are special equipment that can be equipped on both the player character and heroes. Relics have special buffs and can all be individually upgraded to improve the stats for the hero or player they are equipped on. Relics can be earned through events and various other means.
Upgrade (unlocked at level 40)
At player level 40 the feature Upgrade is unlocked. Here you can upgrade the relics and add Relic Origin to each individual Relic. Relic Crystals are needed to upgrade the level of your relics. These items can be earned through Relic Dungeon found at Resource Dungeon, events and various other means. To upgrade the progress bar once click Upgrade, to upgrade the progress bar to 100% or as far as your items allow click Quick Upgrade.
Promotion (unlocked at level 40)
At player level 40 the feature Promotion is unlocked. If you own multiple copies you do not unlock multiple relics. You can however use these cards to promote your existing relic to a higher rank. Promoting relics give an additional percentage bonus to the attributes for the attributes found at the Upgrade section of the relic.
Equip (unlocked at level 40)
At player level 40 the feature Equip is unlocked. Here you can equip relics to yourself or to your heroes. By default 1 slot is already opened on every hero and yourself. The other slots are opened by using Relic Crystalline. These items can be earned in events or purchased at the Guild Shop found at the Trading post.
Sacred Mark (unlocked at level 62)
At player level 62 the feature Sacred Mark is unlocked. Here you can enhance your relics further. Sacred marks are gemlike items that can be equipped and unequipped at will on any relic. There are 4 different shapes of the Sacred Mark and only 1 of each shape can be equipped on a relic. To equip a Sacred Mark simply double click on it or drag it to the appropriate slot. To upgrade the slot bonus of that relic click the yellow arrow found at the slot and click the upgrade button.
Sacred Marks are earned through combining Sacred Mark Shards that can be earned through Endless Journey found at the Campaign or from events. Sacred Mark Essence can be earned through Endless Journey found at the Campaign or by recycling unwanted Sacred Mark through the inventory found at this feature.
This guide is sourced from yabusame.