Call of the Nightwing -2UB
Put a 1/1 Blue and black Horror creature token with flying onto the battlefield.
Cipher (Then you may exile this spell card encoded on a creature you control. Whenever that creature deals combat damage to a player, its controller may cast a copy of the encoded card without paying its mana cost.)
Unlike the previous spoiler with Cipher we've seen so far (Whispering Madness), Call of the Nightwing actually impacts your board position. What's interesting about Call of the Nightwing is that it provides you with the creature to encode, enabling your other Cipher spells.
Revealed today in an article by the staff of MagicTheGathering.com, if you're building a deck around the Cipher mechanic you'll want to play with unblockable creatures such as Tormented Soul and Invisible Stalker.
How will you use Call of the Nightwing?
Catch up on "Return to Ravnica"
Event decks: "Golgari: Creep and Conquer" and "Rakdos: Wrack and Rage."
Intro packs: "Rakdos Raid," "Azorius Advance," "Golgari Growth," "Selesnya Surge," and "Izzet Ingenuity."
Card lists: White, Blue, Black, Red, Green, Azorius, Izzet, Golgari, Rakdos, Selesnya, Hybrid, Artifact, and Land.