He is a kind of gamblers who prove that with good skills and strategies, gamblers can increase their chances to win....
Whether or not it is accepted as a norm, it is by default, an understanding that skills in gaming isn't to be relied on. We all know luck has a greater percentage of contribution towards one's success in gaming and gambling generally, but it will be out of contest to say that one is winning cos he has the skills. Even the best of skills, when subjected to the gambling space, is still subject to uncertainties.
The skills only aid you to play within certain confines and considerations but not to be successful in a game charaterized by luck
Skills maybe not the main factor to win on a luck based game but it plays a huge role upon getting huge chance to win. Unlike if you rely on pure luck and will not think about how you place your bets for sure that you end up getting more lesser chances to win. That's why familiarity and also counting is also important so you could enjoy the games you play.
So try to know more about that and be competitive gambler for sure that you would love what you do and enjoy more the game you participate. Although its not really necessary but for sure you will get more focus by doing somethings that you develop upon experience on playing.