It can also come down and do something right away thanks to Haste
Which ones are you looking forward to playing
Then, add a combination of other cards that support your gameplan, cards that deal with your opponents threats, and 18-24 lands (or 36-40 for EDH)
The main problem is that most Dragon decks are already full to the brim with excellent cards, so it'd be hard to justify cutting cards to make room for this one since it's a lot more situational than Dragons' usual fare
Part of the reason I am looking to cut the Emrakul in my next build of this is because I think I can just ride the Wolf Run in those games where I need a super game ending card
It could be that, from now on, the Fall block will be the Greater Block, and the Spring block will be the Lesser Block