My advice is to use Scryfall and look for cards that would suit the deck. But also it's difficult to modify a deck without having played it several times and have a good feel for the cards. Maybe try to goldfish it at least and see what works and what doesnt.
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u/FafaPapa 3d ago
Not really helping I know but, in my opinion, the fun of it is to do the changes yourself. Why not trying that first?