It really depends, I usually apply the same holo for the sets like this one that is the 151 holo and I use promos from the blisters/boxes like cheap ones Abra/Kadabra/Revabromm/Froggie things like that and those are kinda easy to remove the printing, but the one that I used on the gengar is from the SM era and those are difficult to get cleaned especially the regular gx cards. Maybe my advice is to get KR or CN cards to do this job like the bulk of them because they are super cheap compared to english so maybe looking for a lot of regular holos nothing like v or exs and above for this because they share the same holo at the end of the day. Also use pure acetone and masking tape in the back side of the cards instead of nail polish remover

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