Felidar Guardian and Walking Ballista also seem to be missing :(
Can you shed any light on that?
Yes, those were deliberately left out. Both are key pieces of combo decks that are too powerful for where Historic is (Felidar + Saheeli Rai, Walking Ballista + Heliod). They're both banned in Pioneer for this same reason. That doesn't always mean that the card would need a ban in Historic, but in these cases we're pretty sure the cards are too powerful for the format.
Are you sure the Sculpting Steel is not supposed to be Inspiring Statuary? I was really looking forward to Paradoxical Outcome with Statuary and Aetherflux Reservoir. Please tell me this was just a listing error!
Wizards Jay
Winding Constrictor is in the set. Not sure why it's not appearing here (tracking that down), but it's in the set.
Wizards Jay
Whirler Virtuoso is in the set. I'm not sure why it's missing from the page, but it's just an error.
Wizards Jay
Weren't supposed to be any missing :) So far it looks like Winding Constrictor, Whirler Virtuoso, and Voltaic Brawler were left off.
Wizards Jay
Yeah, that's another error. It's still a token like you'd expect.
Wizards Jay
Yup, it's in the set. So is Whirler Virtuoso.
Wizards Jay
Whirler Virtuoso and Voltaic Brawler are both in the set (but left off this page by mistake).
Wizards Jay
Whirler Virtuoso is in the set; not sure why it's not on the site.
Wizards Jay
Yahenni (and Yahenni's Expertise) are included in the set.
Wizards Jay
Puzzleknots: Looks like it has Cogworker's, Fireforger's, and Woodweaver's.
Yahenni and Yahenni's Expertise are included.
Wizards Jay
Yes, those were deliberately left out. Both are key pieces of combo decks that are too powerful for where Historic is (Felidar + Saheeli Rai, Walking Ballista + Heliod). They're both banned in Pioneer for this same reason. That doesn't always mean that the card would need a ban in Historic, but in these cases we're pretty sure the cards are too powerful for the format.
Wizards Jay
That one is accurate.