1--White
1.1 Here is a first attempt only with RTR block cards.
2--Blue
2.1 Here is a first attempt only with RTR block cards.
3--Black
3.1 Here is a first attempt only with RTR block cards.
4--Red
4.1 Here is a first attempt only with RTR block cards.
5--Green
5.1 Here is a first attempt only with RTR block cards.
5.2 Devotion to Green. This deck avoids expensive cards and plays very well.
6. I am not sure if there will be a viable all-artifacts deck.
6.1 Here is a first attempt only with RTR block cards. This deck needs a lot of help.
The Ravnica guilds are:
7-- Azorius Senate (white/blue)
7.1 Here is a first attempt only with RTR block cards.
8-- The Orzhov Syndicate (white/black)
8.1 Here is a first attempt only with RTR block cards.
9-- The Boros Legion (red/white)
9.1 Here is a first attempt only with RTR block cards.
10- The Selesnya Conclave (green/white)
10.1 Here is a first attempt only with RTR block cards.
11- House Dimir (blue/black)
11.1 Here is a first attempt only with RTR block cards.
12- The Izzet League (blue/red)
12.1 Here is a first attempt only with RTR block cards.
13- The Simic Combine (green/blue)
13.1 Here is a first attempt mostly with RTR block cards.
13.2 Simic Junk Rare Deck: Artisan of Forms
Just like is the case for all creatures that transform from another creature, it is a stalled step in the play sequence and is almost always a step behind faster decks. Still, its a lot of fun. Because you can have Artisan of Forms become a creature in mana your deck may not support, don't leave home without cards like Shimmering Grotto.
14- The Cult of Rakdos (black/red)
14.1 Here is a first attempt mostly with RTR block cards.
14.2 Rakdos for the current meta. Out of the gate many decks are playing Rakdos, Dimir to play Ashiok, Gruul to play Xenagos, and tons of Boros. Reckoner is the new Thragtusk all right. This card is in almost every deck I have played in tournament practice. I have also come against some token decks.
15- The Golgari Swarm (green/black)
15.1 Here is a first attempt mostly with RTR block cards.
15.2 Varolz for RTR to Theros setThis deck works on using Varolz to drop counters on hexproof creatures, and let Vraska and Abrupt Decay wipe out pesky permanents.
16- The Gruul Clans (red/green)
16.1 Here is a first attempt mostly with RTR block cards.
16.2 Plain old Gruul.
16.3 Gruul to test Devotion.
16.4 Gruul to test both weapons.
The shards from Shards of Alara are (with guilds to build them in brackets):
17--Bant is White Green Blue [Selesnya, Simic, Azorious]
17.1 Pre-Theros Bant Deck
Three color decks with guild gates are painfully slow and clunky. Here is one of those.... Its a good training deck, I will say that much!
18--Esper is Blue White Black [Dimir, Orzhov, Azorious]
18.1 Pre-Theros Esper Deck
Three color decks with guild gates are painfully slow and clunky. Here is one of those.... Its a good training deck, I will day that much!
19--Grixis is Black Blue Red [Rakdos, Dimir, Izzet]
19.1 Pre-Theros Grixis Deck
Three color decks with guild gates are painfully slow and clunky. At least in this deck I am using my four Blood Crypts, and playing from my complete play set of RTR block black cards!
20--Jund is Red Black Green [Rakdos, Golgari, Gruul]
21--Naya is Green Red White [Gruul, Boros, Selesnya]
There are also three color combinations that are not shards. When these are combined with the shards, we get an even repetition for all Ravnica guilds of three times. These have names from an early set yet the use of these other terms did not receive wide use. There is ocassional mention, but nothing like how commonly the term "Jund midrange" is used.
22--Ana is Green Blue Black [Simic, Dimir, Golgari]
23--Ceta is Red Green Blue [Gruul, Simic, Izzet]
24--Dega is White Black Red [Orzhov, Rakdos, Boros]
25--Necra is Black White Green [Orzhov, Selesnya, Golgari]
26--Raka is Red White Blue [Boros, Azorious, Izzet]