Dota 2 has a widespread and active competitive scene, with teams from across the world playing professionally in various leagues and tournaments. Premium Dota 2 tournaments frequently have prize pools totaling millions of U.S. dollars, the highest of any eSport. The biggest of them is known as The International, which is made annually by Valve and most commonly held in the KeyArena in Seattle. Valve also manages an event arrangement known as the Dota Pro Circuit, which can be a series of tournaments held yearly that award qualification points based on outcomes for getting directly encouraged to The International. For many tournaments, media coverage is done by means of a choice of onsite staff that provide analysis and commentary for the ongoing matches, similar to traditional sporting events.
Broadcasts of professional Dota 2 games are streamed live over the internet, and at times simulcast on television programs, with peak viewership numbers in the millions. Heroes are the vital element of Dota 2, as the course of the match is dependent on their intervention. During a match, two opposing teams choose five out of 115 heroes that accumulate experience and gold to grow more powerful and gain new skills in order to destroy the opponent's Ancient. Most personalities have a distinct role that defines how they affect the battlefield, though many personalities can perform many roles. A hero's appearance can be modified with equipment. Heroes have one of three primary attributes: Strength, Agility, and Intelligence. Every stage added to a hero's primary attribute increases that hero's attack damage.