I've read about Blackjack game courses, maybe I've also read the strategies presented by OnlineGambling, I don't know where else to source.
I admit that the Blackjack game can be said to be a fairly simple game compared to other gambling games, slots, soccer betting, etc. For that I often see several strategies used by expert Blackjack players, but that's for them, even though we always take the course if the cards are A and 10/J/Q/K, we don't control, the results are still nil, luck, strategy and chance in the Blackjack game are not the main thing, mastering cards in my opinion are the right steps and strategies to win the Blackjack game, actually there are many ways to win Blackjack.
Soccer and other sports betting can be complicated for the newbies but between blackjack and slots I think it was the slots that are much simpler because you only need to push the spin button and watch the screen if you hit something but on blackjack you will need to decide if you will hit or stand.
There are also called insurances on blackjack. It can be confusing sometimes if what we will choose but what do you mean by mastering cards? how can we master cards when the deck is being shuffled at all times? or you mean we need to watch each of the cards that are already given? and that can give us an idea if what cards are not given yet or to be given next?