Cosmic Talismans are one of the few talismans available in the game. Consuming a cosmic talisman for the first time will increase the respective essence gained by 4. Every cosmic talisman consumed afterwards will give a random amount of cosmic essence, seemingly somewhere between 10,000 and 50,000. This is useful for getting large amounts of essence at once to continue runecrafting, as getting it naturally may take longer than preferred.
Players may also buy cosmic talismans from others in the Marketplace.