im real f2p still i choose not structure deck cards as i come to the conclusion most are not worth it and other picks can be better as its really costy in gems.
Structure deck cards isn't worth it at all. It will only cost you a few bucks. You should only pick a main box UR like Floodgate, Divine Wrath, Sphere Kuriboh. Never think that it is easy to get them easily. There are 200 packs in a box and only 1 single Floodgate in it. If you are unlucky you will really need to pull until the last few packs before you get it.