I was thinking, the current artifacts in the game are slightly weaker than quest items - I wont discuss the reasons why this is the case. What I would like to see is true artifacts, true items made by the gods, with real powers and real curses. Not powers like more stats, or more damage, but something more useful.
Here are some of my examples of their powers/curses (I will leave their stats out)
Soul Whip of Hades
Power: 10% of all damage heals the wielder (yes yes, the old vampiric system gets resurrected)
Curse: The whip must be fed at least once every 30mins or its powers fade irrevocably, until it dies out.
Death Mask of Set
Power: When a normal death blow is dealt to the wearer, the Mask intercepts that blow and delivers sanctuary to the wearer. This can happen once per week.
Curse: Any mortal that touches anything made by Set will cause their health to drain constantly, similar to a poison type 1.
The Sun Sword of Ra
Power: A flaming hot lava blast erupts to all those that gets hit by this sword, dealing an extra 6d6 damage that cannot be healed magically.
Curse: Because of the heat of the blasts, the wielder's hands become moulded to the sword. This means, the wielder cannot grab any other item, nor can they use them (ie. no hold item, no dual wield, no light, and cannot use potions/wands/scrolls)
These are just some examples, if you have others, by all means, suggest them. Also, because these are true artifacts, they cannot be dropped or passed on.