Grail structures
Castle- Colossus: Weekly creature generation +50%, 5,000 gold/day, all allied heroes Morale+2 Dungeon- Guardian of Earth: Weekly creature generation +50%, 5,000 gold/day, garrison hero Power+12 while garrisoned
Inferno- Deity of Fire: Weekly creature generation +50%, 5,000 gold/day, every week will be a Week of the Imp Rampart- Spirit Guardian: Weekly creature generation +50%, 5,000 gold/day, all allied heroes Luck+2
Tower- Skyship: Weekly creature generation +50%, 5,000 gold/day, entire world map revealed, defending hero Knowledge+15 while in town Necropolis- Soul Prison: Weekly creature generation +50%, 5,000 gold/day, all allied heroes Necromancy+20%
Fortress- Carnivorous Plant: Weekly creature generation +50%, 5,000 gold/day, garrison hero Attack+10 Defense+10 while garrisoned Stronghold- Warlords' Monument: Weekly creature generation +50%, 5,000 gold/day, garrison hero Attack+20 while garrisoned

Artifacts (all items, except for the Grail, must be equipped to have any effect)
The Grail- Carried to a town then moved from Hero's inventory to the town. Builds grail structure. Spell Scroll- Adds spell to spellbook
Centaur's Axe- Attack+2 Blackshard of the Dead Knight- Attack+3
Greater Gnoll's Flail- Attack+4 Ogre's Club of Havok- Attack+5
Sword of Hellfire- Attack+6 Titan's Gladius- Attack+12 Defense-3
Shield of the Dwarven Lords- Defense+2 Shield of the Yawning Dead- Defense+3
Buckler of the Gnoll King- Defense+4 Targ of the Rampaging Ogre- Defense+5
Shield of the Damned- Defense+6 Sentinel's Shield- Defense+12 Attack-3
Helm of the Alabaster Unicorn- Knowledge+1 Skull Helmet- Knowledge+2
Helm of Chaos- Knowledge+3 Crown of the Supreme Magi- Knowledge+4
Hellstorm Helmet- Knowledge+5 Thunder Helmet- Knowledge+10 Power-2
Breastplate of Petrified Wood- Power+1 Rib Cage- Power+2
Scales of the Greater Basilisk- Power+3 Tunic of the Cyclops King- Power+4
Breastplate of Brimstone- Power+5 Titan's Cuirass- Power+10 Knowledge-2
Armor of Wonder- All primary skills+1 Sandals of the Saint- All primary skills+2
Celestial Necklace of Bliss- All primary skills+3 Lion's Shield of Courage- All primary skills+4
Sword of Judgement- All primary skills+5 Helm of Heavenly Enlightenment- All primary skills+6
Quiet Eye of the Dragon- Attack+1 Defense+1 Red Dragon Flame Tongue- Attack+2 Defense+2
Dragon Scale Shield- Attack+3 Defense+3 Dragon Scale Armor- Attack+4 Defense+4
Dragonbone Greaves- Power+1 Knowledge+1 Dragon Wing Tabard- Power+2 Knowledge+2
Necklace of Dragonteeth- Power+3 Knowledge+3 Crown of Dragontooth- Power+4 Knowledge+4
Clover of Fortune- Luck+1 Cards of Prophecy- Luck+1
Ladybird of Luck- Luck+1 Badge of Courage- Morale+1
Crest of Valor- Morale+1 Glyph of Gallantry- Morale+1
Still Eye of the Dragon- Luck+1 Morale+1 Pendant of Courage- Luck+3 Morale+3
Speculum- Scouting radius+1 Spyglass- Scouting radius+1
Amulet of the Undertaker- Necromancy+5% Vampire's Cowl- Necromancy+10%
Dead Man's Boots- Necromancy+15% Garniture of Interference- Magic resistance+5%
Surcoat of Counterpoise- Magic resistance+10% Boots of Polarity- Magic resistance+15%
Bow of Elven Cherrywood- Archery+5% Bowstring of the Unicorn's Mane- Archery+10%
Angel Feather Arrows- Archery+15% Bird of Perception- Eagle Eye+5%
Stoic Watchman- Eagle Eye+10% Emblem of Cognizance- Eagle Eye+15%
Charm of Mana- Regenerate +1 spell point/day Talisman of Mana- Regenerate +2 spell points/day
Mystic Orb of Mana- Regenerate +3 spell points/day Ring of Vitality- All units health+1
Ring of Life- All units health+1 Vial of Lifeblood- All units health+2
Necklace of Swiftness- Combat speed+1 Ring of the Wayfarer- Combat speed+2
Cape of Velocity- Combat speed+3 Collar of Conjuring- Spell duration+1
Ring of Conjuring- Spell duration+2 Cape of Conjuring- Spell duration+3
Statesman's Medal- Reduces cost of surrendering Diplomat's Ring- Reduces cost of surrendering
Ambassador's Sash- Reduces cost of surrendering Equestrian's Gloves- Land movement bonus
Boots of Speed- Land movement bonus Necklace of Ocean Guidance- Sea movement bonus
Angel Wings- Hero can fly over terrain Boots of Levitation- Hero can walk on water
Orb of the Firmament- Air spells+50% damage Orb of Silt- Earth spells+50% damage
Orb of Tempestuous Fire- Fire spells+50% damage Orb of Driving Rain- Water spells+50% damage
Recanter's Cloak- No level 3+ spells in combat Spirit of Oppression- No morale bonuses in combat
Hourglass of the Evil Hour- No luck bonuses in combat Tome of Fire Magic- All fire spells known when equipped
Tome of Air Magic- All air spells known when equipped Tome of Water Magic- All water spells known when equipped
Tome of Earth Magic- All earth spells known when equipped Golden Bow- No shooting penalties
Orb of Vulnerability- Creature magic resistance negated Sphere of Permanence- Immune to Dispel magic spell
Pendant of Dispassion- Immune to Berserk spell Pendant of Second Sight- Immune to Blind spell
Pendant of Holiness- Immune to Curse spell Pendant of Life- Immune to Death Ripple spell
Pendant of Death- Immune to Destroy Undead spell Pendant of Free Will- Immune to Hypnotize spell
Pendant of Agitation- Immune to Lightning spell Pendant of Total Recall- Immune to Forgetfulness spell
Everflowing Crystal Cloak- +1 crystal/day Ring of Infinte Gems- +1 gem/day
Everpouring Vial of Mercury- +1 mercury/day Inexhaustable Cart of Ore- +1 ore/day
Eversmoking Ring of Sulfur- +1 sulfur/day Inexhaustable Cart of Lumber- +1 wood/day
Endless Purse of Gold- 500 gold/day Endless Bag of Gold- 750 gold/day
Endless Sack of Gold- 1000 gold/day Legs of Legion- +5 town level 2 units/week
Loins of Legion- +4 town level 3 units/week Torso of Legion- +3 town level 4 units/week
Arms of Legion- +2 town level 5 units/week Head of Legion- +1 town level 6 units/week
Sea Captain's Hat- Sea movement bonus, summon/destroy boats, whirlpool protection Spellbinder's Hat- Can cast all 5th level spells
Shackles of War- No one can retreat or surrender Orb of Inhibition- No spells (or sex?) allowed in combat
Pandora’s Box- Storage space?