Fountains serve a number of different functions.
The first is as the spawning area for each team. The main shop is also located in each team's Fountain.
Secondly, Fountains provide rapid health and mana regeneration for allied units - both heroes and any creeps owned by an allied hero. The health regeneration rate provided by a Fountain is 4% of max health per second, 4% max mana per second, and 14 additional mana per second. Fountains also refill Bottle charges.
The third and final function of the Fountain is as a deadly, rapid-firing defensive structure. Any enemy units that come within 1200 range of the Fountain will take 190-199 physical chaos damage per attack. Fountains also have 1200 True Sight range and provide 1800 vision.
