[quote=@Goose]
Are you running these games on Discord over some online program? Do you intend to? And are the decks expected to be competitive in that regard, or are the lists just for the sake of the characters having a gimmick? 
[/quote]

Duels are taking place on Discord and can be done either over an online simulator, or on Discord itself; if you choose the latter then either Ryik of myself will tell you what your draw is for each turn and you will play it out like a real duel. In other words, duels are not scripted and it is expected that you will make your deck good enough to at least be able to compete with other players' decks.

We're not making modern, meta decks though. You don't need to make it super competitive, but it does help to make a deck that is consistent enough to work in a real game.

[quote=@Goose]
(In other words, do I need to learn what Xyz, Link and Tuner cards are?)
[/quote]

You don't have to use any mechanics you don't want to use, but other players [i]are[/i] using these types of cards so it would help to know how they work for when you duel against them. If you have any questions around rulings or things like that then I can help with that.