Kudos to mtgcolorpie for posting this on MTGSalvation (who got it from @LautaraLobos on twitter), and Lauren Lee on her Mulldrifting blog for bringing it to my attention. Worldwake has a mistake on the type-line for the card, "Walking Atlas." Check it out:

Do you see the mistake?

The type line should read: "Artifact Creature - Construct"

Here is the information from Wizards' Worldwake FAQ for this weekend's prereleases.

[easybox]Walking Atlas

{2}

Artifact Creature -- Construct

1/1

{T}: You may put a land card from your hand onto the battlefield.

* The word "artifact" was inadvertently omitted from Walking Atlas's type line. The card has received errata to correct this omission; it is an artifact creature.[/easybox]