Komoney never limit staples. Just play 10 monsters + 10 spell/traps and your deck is done. If they nerf Shiranui then bring over your 10 staple spell/trap and start a new deck.
Any meme deck on earth can be extremely annoying when you have 3x Floodgate, 3x Chain, Drowning, WoD, Karma, Dimensional Prison......
Yep, generic staples are the best investment because you can use them with any deck, and it's unlikely Konami will hit them since they are also "chase cards" due to how useful they are.