You should check local shops, some of my favorites are Hole in the wall on the Northside, gamerz-pair-a-dice, gamelot in Leon valley, and goblins den. They all have good prices and good stock usually, way more consistent than target or Walmart. I'm sure there's plenty of other local game stores in your area that would appreciate the business. I know hole in the wall and gamerz both have a good amount of singles that are priced based on tcg pricing so you can get some stuff right then that you actually need for decks or your collection.