Some items do not provide their effect to heroes with passive abilities providing the same or similar effect.Multiple instances of the same aura or debuff will not stack, even if the two copies of the item providing it are owned by separate heroes.Cooldowns are shared between identical items with active abilities, and if one item with an active ability can be upgraded into another, most of the time both will share a cooldown.Most item effects cannot be effectively stacked with multiple copies of the same item on a single hero, with the copy only being able to provide the base stats of the item.The range for transfering an item to another unit is 300.The range for picking up an item from the ground is 150.The range for dropping an item on the ground is 100.Gem of True Sight and Divine Rapier cannot be destroyed.Allies' items which are not flagged as shareable cannot be destroyed.Most dropped items can be destroyed by force-attacking them (default key: A).The starting Town Portal Scroll and any other items gained from selecting a bonus hero or randoming cannot be sold.Gem of True Sight and Divine Rapier cannot be sold at any time.

After 10 seconds have passed, or the item's active ability has been used, selling an item only recoups 50% of its original price.

Most items may be sold back to vendors for all of the gold spent, if sold within 10 seconds after purchasing, and the item's active ability (if it has one) has not been used yet.

Heroes cannot use items owned by other heroes, with a handful of exceptions.

All side shops have been removed from the game in 7.23 update. They allowed players to buy certain useful items without returning to base or to the secret shops. Two Side Lane Shops were shops that could be found at the edges of the map.

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