I don't know if I'm the first but I definitely won't be the last to say there is no 'best' deck.
This game is (as far as I know, maybe only in ELO) balanced. Thus making the outcome uncertain, requiring players to think/use strategy and allowing for a variety of choices players can make to build their deck which suits their playstyle or which they enjoy. All factors which make a game fun.
Also, if there was a 'best' deck, it would take away all those factors, making the game no fun. If the 'best' deck does exist, then the first person to collect the most Clintz or the person with the greatest knowledge of the game (odds are they'd be the same person) would already have it. So you can try to track that person down but unless there's some insanely overpowered combination I haven't found yet, there's no deck that could compensate for the other factors of a game, such as pillz management, mind games, blocking 'n' bluffing..
Bottom line- No 'best' deck. Just have fun. Don't grind for Clintz and not enjoy yourself.

Unfortunately, there isn't a straight-forward answer to that question and it depends alot on what you mean by the best deck.

For starters:
What kind of deck are you referring to? ELO? Daily Tournaments Type 1? Daily Tournaments Type 2? Are you simply looking for a deck to play in the rooms that don't have a restriction on the cards you can use? What do you mean by all the clintz you need? Enough to pick up Lyse Teria Cr?

Once you know what kind of games you wish to play, you can start asking questions on the pluses and minuses of the different decks. Unfortunately, only you can say which deck is the best possible deck for you. It depends on how you play the game, but that is something that you can figure out later.

So - first tell us the style of play you are looking for and I'm sure that you'll get alot of suggestions =)

Really? okay then no need to hold back..

Roots*12
Kiki Cr
Nahi Cr
Beltran Cr
Miken Moose

Nightmare*13
Kolos*5 / Nistarok*5
Kenny*4
Sheitane*2
Hel*2

enjoy..


Pure La Junta:

La Junta*25:
General Cr*5
Emeth*5
Gertrud*4
Bruce*3
Jane Ramba*2
Dean*2
Wardog*2
Molly*2

good deck!


steel defense, high damage:

Pussycats*11
Charlie*4
Yayoi*3
Manon Cr*3
Wanda*1

Sakrohm*14
Guru Cr*5
GraksmxxT*4
Uranus*3
Lunatik*2

not easy to penetrate this deck..


criminal and police:

Junkz*12
DJ Korr Cr*5
Otakool*3
Onik*3 / Keanew*3
Veenyle*2

Sentinel*13
Tessa Cr*5
Dragan Cr*4
Rebecca*2
Aurelia*2


Kill! Kill! Kill!

Fang Pi Clang*25:
Kerozinn Cr*5
Lao Cr*5
Macumba*4
Elya Cr*3
Marlysa Cr*2
Windy Mor*2
Xia Leming*2
Sakazuki*2

enjoy.. and please battle against me if you done build your deck based on my guide, please?

Personally, I think the best deck possible would be a deck full of 1-hit KO cards cuz then u could bluff thru most of ur cards and win in 1 turn.
This is 4 Fight Type 2

Leader
Timber (helps w/ Hammer)

o snap srry, I accidently pressed answer to this subject....

when anyway....

All Stars
Hammer

Leader
Timber(helps w/ Hammer)

Fang Pi Clang
Kinjo
Lost Hog

La Junta
Emeth
that barber cr dude, I forgot his name, he has 1/8 at 4 stars

Nightmare
Kolos(who could 4get abt it?)
Nistarok(decent ability)

u could switch out Nistarok and Marina w/ some good dmg reducers from those clans, I 4got the names of other good dmg reducers

Here's something a bit similar to the above deck.

Uranus
GraksmxxT
(For defense)

Kolos
Kinjo
Lost Hog
Lao Cr
Kenny
(Killers with fury)

Leader: Morphun

How's that?
But seriously, there is no 'best deck'. Almost anyone will tell you that. There's also hardly such a thing as "all the clintz you need". Can you pay millions for a collector?

Depends on your playing style dude,
But since you got all the clintz possible, I would advise you to make 4 decks:

Rescue
Bangers / All Stars - Pussycats
Uppers - Pussycats / GHEIST / Roots
Bangers - Montana

These are my main Picks as of late... GG's!

Here's a nice one if you have all the ctz you need

Guru Cr
DJ Korr Cr
Lyse Teria Cr
General Cr
Kiki Cr
Sum Sam Cr
Scarlett Cr
Manon Cr

very fun to play, the opponent is too shocked to play and lets the battle timeout in round 1, 100% guaranteed

Yup I will shocked too..
that's for type 2..
I put all of those Cr in my post except Scarlett Cr, Lyse Teria Cr and Sum Sam Cr..