If are just starting into this collecting hobby then I would recommend to go with what your heart is saying, like if you are more into generation 1 Pokmons then sets like Battle region and Dark phantasma will really impress you and if you have want to collect some expensive cards then sets like lost abyss, star birth will give you a really good pump of excitement while opening the packs and if you find any beautiful cards from our single card section then you can directly get them without having the need of opening bunch of packs for it and I am going to be honest, getting the card that you are chasing after directly will be much cheaper for you but the feeling you get while opening packs makes it worth it for sure and yeah I am not saying this to make you guys buy packs or booster boxes lol
Other ideas mixed things that other colors can do, like haste (red), discard (black), trample (green), lifegain (white), and counterspells (blue)
But The same goes for your opponent too, as it's not entirely obvious how they should choose either
Special shout-out to Chthonian Nightmare in this deck
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