The two titans have defined the genre and it's hard to imagine a game improving on their model. There's no denying the highly-competitive, efficient MOBA experiences that are DOTA 2 and League of Legends. 'Heroes of the Storm' steals the best parts of existing MOBAs, adds some new mechanics, and throws in a recognizable cast of Blizzard characters to make an insanely fun and addicting PC arena brawler.