On CosmicSky you can acquire high tier Marauder Keys to unlock the ability to kill higher tier marauder mobs and unlock higher tier Marauder chests. Each separate adventure has its own marauder Keys. Marauder Keys reset on Map Resets.

Tier Key Description
Heroic

A Heroic Marauder key will unlock the ability to kill Heroic Tiered Marauder Mobs and unlock Heroic Chests.
Mythic

A Mythic Marauder key will unlock the ability to kill Mythic Tiered Marauder Mobs and unlock Mythic Chests.


Hover over a Key to see information on the different Keys