Death's Shadow – Worldwake rare. Death's Shadow is a "shadow avatar," a personal incarnation of a mage's soul, a creature made of magic that represents the mage's innermost power. But this creature has a twist -- the avatar "feeds" from the mage's life force, so it becomes stronger the weaker the mage gets.
Sejiri Steppe – Worldwake common. It enters the battlefield tapped. It only taps for one color. Did we mention it's common? But the humble Sejiri Steppe was a singleton in four of the eight top Standard decks in Pro Tour–San Diego, jumping out at instant speed—thanks to Knight of the Reliquary—to foil pesky removal spells.
Dread Statuary – Worldwake uncommon. Raging Ravine, Stirring Wildwood, and friends got a lot of attention at Pro Tour–San Diego, but they weren't the only creature lands in the Top 8. Craig Wescoe's White Weenie deck took advantage of its easy mana to play a full four colorless-producing, hard-hitting creature lands.
Crusher Zendikon – Worldwake common. If you put a Zendikon on a land with an "enters the battlefield" ability, you get an extra bonus after the land returns to your hand. Your Khalni Garden could generate a 0/1 Plant token, attack for 4, and then give you another Plant!
Mysteries of the Deep – Worldwake common. Throughout Worldwake, the secrets of Zendikar are starting to be revealed. Some of them are the results of quests (or treasure hunts), and some are just because the roil has decided to reveal a mysterious, half-buried statue.
Fledgling Griffin – Worldwake common. The flavor text for Fledgling Griffin explains its ability: whenever it sees a new land, it takes flight so it can see better. Then, sadly, it returns to the ground until the next new tourist destination opens up.
Eye of Ugin – Worldwake mythic rare. Eye of Ugin was predicted way back in Future Sight (or should that be "will be predicted"?) in Ghostfire's flavor text: "Only those gifted with the eye of Ugin, the spirit dragon, can see his fiery breath."
Ricochet Trap – Worldwake uncommon. Ricochet Trap is unusual in that it's a red card showing a blue mage casting a spell. But the spell is looping around the hedrons and coming back to hit the mage instead of its intended target! This was a cleaner way to convey the spell than attempting to show a red mage engaged in redirecting a spell.
Marsh Threader – Worldwake common. Marsh Threader parallels the very similar (in name and ability) Zendikar card Cliff Threader. In fact, a careful examination of the art suggests that they might be the very same threader, just relocated from the mountains to the swamp.
Wrexial, the Risen Deep – Worldwake mythic rare. From the Worldwake FAQ: If you cast a card "without paying its mana cost," you can't pay any alternative costs. On the other hand, if the card has additional costs (such as kicker or multikicker), you may pay those.
Bazaar Trader – Worldwake rare. From the Worldwake FAQ: This effect has no duration. The targeted player retains control of the targeted permanent until the game ends, the permanent leaves the battlefield, or an effect causes someone else to gain control of it.
Walking Atlas – Worldwake common. From the Worldwake FAQ: 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.