Banned cards
Anything on the TCG and OCG banlist, however, if something is banned on one list and yet limited on the other it, it is limited. Same is true for cards that are not banned on one list (which makes the card playable at three)
Note!Just remember I will be curating decks to avoid anyone going too crazy with the resulting freedom. We are going for story duels that are cool and flavourful, over meta slogs.
Also, if you can, do try to justify why you as a student if you have one, have an exceptionally rare or powerful monster in your deck (like Judgement dragon in lightsworn for instance). If you don't have one you can very much earn it during the roleplay which would be a good growth for your deck. Try to build a deck with that in mind as earning cards is a very good way of symbolising progression as a character.
How Duels will be played
Preferably duels will be done with 4k life points in a freeform format where both players are allowed to draw what they please (as long as its in their deck) with the intent to make the duel as exciting as possible for the people involved. Of course in the event that this is unlikely due to player disagreements or the like. It can in the worst case scenario also be done through simulators but this is not prefered.