As someone who only plays limited (almost exclusively drafts) I'm really looking forward to drafting this set. So far Izzet looks to be wayyy strong for drafting though. Golgari (besides the planeswalker) seems like a bit of an iffy guild for drafts. Personally really looking forward to what Azorius will bring. (Though I'm VERY VERY excited about Gatecrash, Simic and Orzhov were and will be my favorite guilds)