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Treasure Hunter's Shovel
Reduces the time required for excavations by 60%, meaning you can dig, step away, and dig again in a single day.
Dungeon Shovel
Allows you to enter or exit a dungeon. To do this, the corresponding tile must be free. The action takes an entire day.
Lumberjack's Axe. Allows you to clear 1 tile of forest, adding 2 units of wood. The action takes an entire day.
Miner's Pickaxe. Allows you to clear 1 tile of mountain, adding 2 units of stone. The action takes an entire day.
Endless Joint.
Allows you to stop the operation of any neutral object (the duration ranges from a week to a month) (by smoking it).
For example, by smoking the gatekeeper before the enemy arrives, you can disable him for a long time.
Siege Catapult.
Destroys city buildings, and possibly the entire city. Requires a whole day to use.
Magic Binoculars. Allows you to inflict magic damage at a distance.
Chains of the Mind (very powerful artifact)
Bind the mind of the enemy hero to the ground. (you must be within 1 tile). As a result, he cannot move. The chains remain with the bound hero. After that, any hero can free him from the chains and take them for himself. If the hero still moves, the chains will be destroyed, and he will lose all his experience and skills.
Similar chains can be created:
Magnetic Chains (you can leave, but without all artifacts)
Don't know what to call it (you can leave, but without 1/3 of the army)
Magic (you can leave, losing all mana and spells)