Bottle

The Bottle is an item purchasable at the Main Shop, under Consumables.

Useful throughout the game, it can be used as a quick healing item that can be easily replenished, or to save up a Rune for a difficult push. Though it costs significantly more than other healing items, a good player can put a Bottle to excellent use.

Additional information
The Bottle is a fully sharable item, means anyone who picks it up can use it. However, storing a Rune causes it to become undroppable, making it impossible to share a stored Rune. After using Bottle with a Rune in it, you get that Rune's effect, as well as your Bottle gets refilled.

Bottles refill automatically whenever they are in the inventory of a unit which is affected by the regenerating aura from the fountain. The aura's buff lingers for two seconds, so for a brief time after leaving the fountain, Bottles are still refilled. When the Bottle is not full, it slows down couriers by 30% when they carry it. This effect fully stacks with multiple non-full Bottles in the courier's inventory, so 3 non-full Bottles for example would slow it for 90%.