Relying on instincts? Of course, all humans did such. Both he and every opponent he faced did so on a regular basis. It was common sense; reacting to a a threatening action is on instinct more often than not and that was normal. 2fast was correct: being human sucked. You couldn't get around your instincts, but being able to use them to your advantage was a good thing. (Though the way she talked about humans as if she wasn't one was fairly suspicious, Daigo didn't give it very much thought as it was similar to his own philosophy, being a Savior and all.)

However, in this situation Kaguya's claims fell on unstable ears. Relying on instincts? How dare she accuse such a prolific gamer as The_Fiend of being no more than a filthy animal. Daigo seethed with suppressed rage. He refused to believe she had beaten him in any way other than cheating. And so, he decided to challenge her to a game where only the dealer could cheat.

The Fiend reached into a pocket on his bag and procured a deck of 52 cards. He shuffled them in a way to make sure it was clear he was not cheating before placing the newly-shuffled cards onto the tray table and simply proclaiming "Blackjack."

He dealt his opponent two cards, the first face-down and the second face-up as were the rules in Blackjack. Kaguya's face-up card was the Queen of Hearts. Then he did the same to himself. His face-up card? The King of Hearts. He picked up his face-down card. The Five of Diamonds. He thought over the probabilities in his head. 

If he were to draw a card greater than [u]6[/u], he would bust. To get a perfect [u]21[/u], he would need a [u]6[/u]. Currently, in the deck, there were [i]48[/i] cards. Ignoring his opponent's face-down card, he could calculate the remaining cards as if there were [i]49[/i]. Out of the [i]49[/i] cards that remained, there were [i]14[/i] valuing [u]10[/u], and another [i]12[/i] that would raise his current value above [u]21[/u] resulting in a bust. All in all, that was [i]26/49[/i] or about [b]53%[/b]. There were [i]4[/i] cards remaining that could give him a perfect [u]21[/u]; [i]4/49[/i] or about [b]8%[/b]. That left [i]19[/i] which would leave him below the [u]21[/u] threshold or about [b]39%[/b].

There was over a [b]50%[/b] chance of him busting. Those were not good odds. However, when faced with the fact that there was over a [b]50%[/b] chance that his opponent had achieved a value over his [u]15[/u] ([i]4[/i] aces + [i]30[/i] (the amount of cards valuing over [u]5[/u] that remained in the deck) left her with about a [b]69%[/b] chance), a [b]53%[/b] chance of failure was much lower than a [b]69%[/b] chance. And so, he chose to draw another card.

As he reached to the deck he found himself praying to the god of chance that he would neither bust nor receive too low a number to make a difference. Daigo caught himself doing this and mentally criticized himself for it before picking up the card and taking a look...