Collect all of the Special Item Collectables and place them in their required pillar to unlock certain special Challenges in the game:
Axe Extender Challenge 4:
Collect all Priest's Amulets
Gauntlet Extender Challenge 4:
Collect all Emperor's Coins
Sword Extender Challenge 4:
Collect all Titan Tablets
Sword, Axe, Gauntlet Challenge 4 (Choose your Ultimate Weapon):
Have All Special Item Collectables collected.
Unlock Weapon Challenge Arena:
Collect all the Titan Tablets, Priest Amulets, and Emperor Coins and offer them at the appropriate pillar to unlock the Weapon Challenge arena in Elysiam.
Unlock New Weapons:
Earn weapons by completing challenges in Elysiam.
Annihilation - Clear Axe Challenge 4.
Invictus Gladius - Clear Sword Challenge 4.
Olympus Cleavers - Clear Gauntlet Challenge 4.