Dota2 is an amazing game for entertainment and also to earn lot of money. An average person can earn millions of dollars in a month. Dota 2 make us learn many new things also.
You can learn dota 2 in beginning months and then can become member of professional teams. It is a kind of e-gaming real life tournament. When you will have enough experience and lot of strategies in this game, You can join professional tournaments.* But please be aware, it is very addicted game. One can ruin his/her career playing this game.