Raid Skulls

The Raid Skulls are "mysterious, eldritch artifacts" in A Legend's Legacy. They were in the game since early release, but had no purpose, being either a notorious trinket, or just "junk". With the release of the Bastion of Elementia and the Hardened (or Hardcore) difficulty, the skulls had a purpose in which they must be collected to unlock the aforementioned difficulty for an extra tier of challenge. Despite this, this was changed and now all players have access to Hardened mode.
Notably, the skulls had no lore, thought to just be ancient relics of forgotten warriors. It was later stated that they were created by a "mysterious force not from this world" by the Godborne to make challenges harder and to provide a greater sense of realism to high-tier content. The devs have said they were "created by the creators" to make life more of a living hell. 
There are seven skulls in the game, all originally world drops.
==Skulls==
*Alpha: 
*Beta:
*Delta: 
*Gamma: 
*Sigma:
*Theta:
*Omega:
==Future==
*They will have "a more significant use" in the future.