Courier

The Animal Courier is an item purchasable at the Main Shop, under Consumables. It creates a small fast unit that can carry your and your allies' items to and from your base. If it dies it will respawn after three minutes, and the items it was carrying will be inaccessible until then. Can be upgraded to a Flying Courier.

Summon Animal Courier
Summons an Animal Courier to carry items for you. The Animal Courier is not affected by most spells, and has magic immunity. A walking courier gives 150 gold to each enemy player if killed, while a flying courier gives 175 gold to each enemy player. (additional courier doesn't give bounty to whole enemy heroes) The courier is invulnerable when near the friendly Fountain. It can use some items that cost no mana such as Smoke of Deceit which will provide the shroud effect to any allied heroes in close proximity to the Courier. Also, It benefits from items that grants HP regeneration.