Generally, though it could vary slightly depending on the expansion, the Set Booster would contain twelve cards, comprised of 1 to 5 cards at Rare or higher, then a selection of Commons, Uncommons and a bonus 2 non-playable cards too
You can change things up around the edges by being more aggressive or more controlling and maybe adding a reanimation package, but it's hard to build a completely different style of Dragon deck
Blue: Sea Gate Restoration, Rhystic Study (I mean, it has to be listed here), Pull From Tomorrow, Treasure Cruise, etc
Brawl Legal Vintage Legal Timeless Legal Commander Legal Pauper Not Legal Oathbreaker Legal Penny Not Legal Toolbox Buy This Card Notes and Rules Information for Chandra, Torch of Defiance: An effect that instructs you to "cast" a card doesn't allow you to play lands
This both enhances the Zombie player's board state and nullifies an opponent's graveyard-based effects, such as reanimating a huge threat