Return of the Wildspeaker could potentially draw a ton of cards when cast at the right time, and Garruks Uprising and Descendant's Path provide repeatable non-creature card draw
The result is a card that I doubt would get reprinted, as it both is banned and worth a ton of cash
With the old Restore Balance deck, you could just fire away without Greater Gargadon and reduce your opponent to maybe a land while you had resources to work with
If this hulking dragon is on the board at your end step, and your total creature toughness is above ten, you draw a card
Per the official reports, the collaboration has over 100 legendary creature cards, including borderless variants of iconic figures like Cloud Strife, Sephiroth, Yuna, Lightning, and Emet-Selch