Which Yu-Gi-Oh structure deck should I purchase?
Go with Zombie World. You will have to add Zombie Master and a few others on your own to get it to really perform well, but the Structure is a decent start. Spellcaster’s Command is ok too. The spell counter effects can be useful but it’s not considered a top rated deck. Warrior’s Strike is total crap IMO. There are only 2 good cards in the whole deck so it is not worth it if you are looking for an entire deck to play. Just a side note: The Dark Emperor is a really good Structure Deck too. It makes a nice removal deck without making too many changes. But you should know you will have to change about 1/3 of most Structures to get it ready for tournament play. Some of the best cards are left out because they are expensive. Also, you may need at least 2 copies of a Structure to make a consistent tournament deck. Good luck with your deck building.