Here are a few more ideas for artifacts:
Golden Goose [Relic] [Shoulders] Heroes 2/Heroes 3 HotA
Bonuses:
- Adds +2000 gold to your treasury daily.
Consists of:
- Pouch of Endless Gold
- Bag of Endless Gold
Necronomicon [Ancient Relic] [Left Hand]
Bonuses:
+5 Magic and Knowledge
- Weekly (on Mondays), adds a squad of Black Knights/Death Knights (+2) or Mummies (+6) to the hero's army.
[!] The number of creatures in the squad depends on the hero's level (the minimum is indicated in parentheses).
[!] The type of squad added to the hero is determined by the Great Mighty Random =)
- Reduces the cost of dark energy for raising undead by 20%.
As for everything else, I have no idea how, or even if it's possible, to transfer properties from one artifact to another.
P.S. I really like your post formatting ;)