A few questions, I don't mean to be a stickler for details, but why is he both a bitter person and a pacifist? Is he bitter because he had a bad childhood or is that just his personality? Why does he not want to kill people? Some people simply have not considered the act of murder, others make a conscious choice to avoid killing for some moral or ethical reason.

Does the deck replenish or does he run out of cards? If he runs out, how does he get/make more? If they don't run out, does he have to collect them after every battle? Why does the deck have a ten minute cooldown?

You don't have to answer all these questions, I was just wondering if there were reasons.

On the flipside, I offer my character up to the same level of scrutiny.