Magic The Gathering Return to Ravnica Spoiler - Skyline Predator

Skyline Predator - #50/274 - Uncommon
Creature - Drake

Flash (You may cast this spell any time you could cast an instant)

Flying

"It will dodge your first arrow and flatten you before there's a second."
-Alcarus, Selesnya archer

Illustrator: Wesley Burt
Source: Wizards of the Coast

Magic The Gathering Return to Ravnica Spoiler - Carnival Hellsteed

Carnival Hellsteed - #147/274 - Rare
Creature - Nightmare Horse

First Strike, haste

Unleash (You may have this creature enter the battlefield with a +1/+1 counter on it. It can't block as long as it has a +1/+1 counter on it.)

Its favorite treats are candied hands and sweet hearts.

Illustrator: Chase Stone
Source: Wizards of the Coast

Magic The Gathering Return to Ravnica Intro Pack - Selesnya Surge

Selesnya Surge 

The Selesnya Conclave relentlessly seeks to grow its ranks—both outward and upward. Use the populate ability to multiply your largest token creatures, then go forth and spread the good word. Grow big or go home!

Magic The Gathering Return to Ravnica Spoiler - Jace, Architect of Thought

Jace, Architect of Thought - #44/274 - Mythic Rare
Planeswalker - Jace

+1 : Until your next turn, whenever a creature an opponent controls attacks, it gets -1/-0 until end of turn.

-2 : Reveal the top three cards of your library. An opponent separates them into two piles. Put one pile into your hand and the other on the bottom of your library in any order.

-8 : For each player, search that player's library for a nonland card and exile it, then that player shuffles his or her library. You may cast those cards without paying their mana costs.

Illustrator: Jaime Jones
Source: Wizard of the Coast

Magic The Gathering Return to Ravnica Spoiler - Syncopate

Syncopate - #54/274 - Uncommon
Instant

Counter target spell unless its controller pays X.

If that spell is countered this way, exile it instead of putting it into its owner's graveyard.

Patience, mage. Killing you now would be too easy.
Illustrator: Clint Cearley
Source: Wizards of the Coast

Magic The Gathering Return to Ravnica Spoiler - Auger Spree

Auger Spree - #144/274 - Common
Instant

Target creature gets +4/-4 until end of turn.

"Finally, a weapon the Boros can't confiscate!"
-Juri, proprietor of the Juri Revue

Illustrator: Raymond Swanland
Source: Wizards of the Coast

Magic The Gathering Return to Ravnica Spoiler - Azorius Charm

Azorius Charm - #145/274 - Uncommon
Instant

Choose one - Creatures you control gain lifelink until end of turn; or draw a card; or put target attacking or blocking creature on top of its owner's library.

"The rules of logic and order have already made the choice for you."
-Isperia
Illustrator: Zoltan Boros
Source: Wizard of the Coast