This is a hero build for people who understand the basic mechanics of Dota (Enemy heroes and creeps are bad, towers kill you easily, last hits give you gold, I can buy items with the gold and use them). It is meant to be an easy way to learn a hero without overwhelming you with too many things. Viper only has 2 active abilities, with one being an auto-cast, so he is easy to use. The items I chose are mainly passive and allow the user to survive fights and in return kill the enemy without help sometimes.