[@Dynamo Frokane] Hm. This may be a strange question, but how does the deck come into play inside of the arena? As far as I can tell you can choose when to play which cards without having to draw or anything, so I'm wondering how that shows up inside of the arena. Do they just float in front of you, or is there like a holder in which the owner keeps their cards? Or do they just disappear, and the owner remembers everything they have off the top of their head?

EDIT: Additional question. Assume a fight does happen, what happens to everyone else? Since time is technically 'frozen', it would get really confusing if events were happening an hour in the future while two parties fought.

EDIT2: And say a battle concludes, is there some kind of mental whiplash? Considering they were hurt in the arena, does that somehow reflect on their real bodies?