yugioh steal deck Complete Custom for Yu-Gi-Oh! All cards will be carefully packed for safe transit. Structure Decks – Yu-Gi-Oh! TRADING

I doubt that this is going to be commonplace, but I did want to say that I think the Rules Committee will take action if this actually becomes a recurring problem

Ive already mentioned some as combo pieces for specific strategies, and youll notice that a lot of them are really different from each other

Now build a more perfect card deck by earning cards, opening booster packs, or by trading with other people

The deck focussed uniquely and entirely around Seismitoad (you really didnt need more) and it relied on the power of Slurpuff to get you the disruption cards you needed every moment

Assuming you're playing Type I rules (remember that Richard only lets you use cards legal in the format you're playing), then yes