If you're only interested in cards rather than the TCG accessories, then this is a great, fairly cheap option to get some packs and even an exclusive promo to keep in your collection
What we do have is a case study in Wizards adjusting to meet market demands, and thats via the four Hatsune Miku drops
No: we care about her being Green
The main items are detailed down below, quoted from WotCs official article: Creatures without creature types got some creature types. Some artifact creature cards just said summon artifact and some legendary creature cards said summon legend. For example, the first printing of Rorix Bladewing was a Creature Dragon Legend, but this was changed to Legendary Creature Dragon. Creatures that lacked races got a race. Samite Healer was a cleric but is now a human cleric
The second level costs 2 mana but could easily pay for itself in the right deck
Steamflogger Boss Year : 2007 Expansion : Future Sight There are two big questions to this card design: first, is the Rigger keyword, and second, is the Contraption keyword