Attack/Defense Skill Artifacts

Dragon Sword of Dominion:  +3 Attack
Power Axe of Dominion:  +2 Attack
Thunder Mace of Dominion:  +1 Attack
Giant Flail of Dominion:  +1 Attack
Spiked Helm:  +1 Attack, +1 Defense
Spiked Shield:  +2 Attack, +2 Defense
Divine Breastplate of Protection:  +3 Defense
Stealth Shield of Protection:  +2 Defense
Defender Helm of Protection:  +1 Defense
Armored Gauntlets of Protection:  +1 Defense

Power/Knowledge Skill Artifacts

Arcane Necklace of Magic:  +4 Spell Power
Witch's Brooch of Magic:  +3 Spell Power
Caster's Bracelet of Magic:  +2 Spell Power
Mage's Ring of Power:  +2 Spell Power
White Pearl:  +1 Knowledge, +1 Spell Power
Black Pearl:  +2 Knowledge, +2 Spell Power
Foremost Scroll of Knowledge:  +5 Knowledge
Superior Scroll of Knowledge:  +4 Knowledge
Major Scroll of Knowledge:  +3 Knowledge
Minor Scroll of Knowledge:  +2 Knowledge

Mobility Artifacts

Nomad's Boots of Mobility:  +6 movement on land
Traveler's Boots of Mobility:  +3 movement on land
True Compass of Mobility:  +5 movement on land/sea
Sailor's Astrolabe of Mobility:  +10 movement on sea

Luck Artifacts

Four-Leaf Clover:  +1 Luck
Gambler's Lucky Coin:  +1 Luck
Lucky Rabbit's Foot:  +1 Luck
Golden Horseshoe:  +1 Luck

Morale Artifacts

Medal of Courage:  +1 Morale
Medal of Distinction:  +1 Morale
Medal of Honor:  +1 Morale
Medal of Valor:  +1 Morale

Resource Producing Artifacts

Endless Purse of Gold:  +500 gold per day
Endless Bag of Gold:  +750 gold per day
Endless Sack of Gold:  +1000 gold per day
Endless Cart of Ore:  +1 ore per day
Endless Cord of Wood:  +1 wood per day
Endless Pouch of Crystal:  +1 crystal per day
Endless Pouch of Gems:  +1 gem per day
Endless Pouch of Sulfur:  +1 sulfur per day
Endless Vial of Mercury:  +1 mercury per day

Spell Enhancement Artifacts

Wizards Hat:  Spell duration +10
Ankh:  Double effect for resurrection and animate spells
Book of Elements:  Double effect for summoning spells
Gold Watch:  Double effect for hypnotize
Evercold Icicle:  Cold spells deal 150 percent damage
Everhot Lava Rock:  Heat spells deal 150 percent damage
Lightning Rod:  Lightning spells deal 150 percent damage
Enchanted Hourglass:  Spell duration +2

Spell Cost Reduction Artifacts

Elemental Ring:  Halves cost of summoning spells
Evil Eye:  Halves cost of curse spells
Skullcap:  Halves cost of mind-affecting spells
Snake Ring:  Halves cost of bless spells

Spell Protection Artifacts

Holy Pendant:  Immune to curse
Kinetic Pendant:  Immune to paralyze
Pendant of Death:  Immune to holy word/shout
Pendant of Free Will:  Immune to hypnotize
Pendant of Life:  Immune to death wave/ripple
Seeing-eye Pendant:  Immune to blind
Serenity Pendant:  Immune to berserk
Wand of Negation:  No dispel on your creatures
Fire Cloak:  Half damage versus heat
Ice Cloak:  Half damage versus cold
Lightning Helm:  Half damage versus lightning

Miscellaneous Artifacts

Ammo Cart:  Endless ammo
Ballista of Quickness:  Extra catapult shot per turn
Golden Bow:  No archery penalty for obstacles
Power Ring:  +2 spell points recovered per turn
Statesman's Quill:  Surrendering costs 10% of normal cost
Telescope:  +1 scouting radius

Cursed Artifacts

Fizbin of Misfortune:  -2 Morale (Cursed)
Hideous Mask:  Prevents monsters from joining hero
Tax Lien:  -250 gold per turn

"The Price of Loyalty" Expansion Artifacts

Arm of the Martyr:  +3 Spell Power, undead morale penalty
* Breastplate of Anduran:  +5 Defense

Broach of Shielding:  Half damage from Elemental Storm/Armageddon, -2 Spell Power

Crystal Ball:  Allows anyone within a certain radius of the hero holding it to obtain detailed information on army camps, heroes, and towns by right clicking on them

Gravedigger's Shovel:  The hero's necromancy skill  +10%
Heart of Fire:  Half damage from fire, double damage from cold
Heart of Ice:  Half damage from cold, double damage from fire
*Helmet of Anduran:  +5 Spell Power
Holy Hammer:  +5 Attack
Legendary Scepter:  +2 all attributes
Masthead:  +1 luck, +1 morale in sea combat
Spell Scroll:  Contains one spell per scroll

Sphere of Negation:  No spells can be cast in combat, by either side

Staff of Wizardry:  +5 Spell Power
Sword Breaker:  +4 Defense, +1 Attack
* Sword of Anduran:  +5 Attack

* Battlegarb of Anduran:  +5 Attack/Defense/Spell Power, maximum morale and luck, town portal spell added to hero's spell book

*special note:  When a hero has the Sword, Breastplate and Helm of Anduran equipped, it will convert into the combination artifact the Battlegarb of Anduran.  However, the Battlegarb itself may be found placed in its entirety on some maps.

Ultimate Artifacts

Ultimate Book of Magic:  +12 Knowledge
Ultimate Cloak of Protection:  +12 Defense
Ultimate Sword of Dominion:  +12 Attack
Ultimate Wand of Magic:  +12 Spell Power
Ultimate Shield:  +6 Attack/Defense
Ultimate Staff:  +6 Knowledge/Spell Power
Ultimate Crown:  +4 all stats
Golden Goose:  +10,000 gold per turn