House (1)
House Martell (Core) x1
Agenda (1)
The Brotherhood Without Banners (RoR) x1
Plot (7)
Summoning Season (Core) x1
Twist of Fate (APS) x1
Doran's Scheme (TGF) x1
To the Spears! (PotS) x1
Valar Morghulis (Core) x1
Breaking and Entering (LotR) x1
Calm Before the Storm (LoW) x1
Character (34)
Carrion Bird (ASoS) x3
Fanatical Follower (KotStorm) x3
Lost Spearman (MotM) x2
Ghost of High Heart (WLL) x2
Orphaned Recruit (OSaS) x3
Dornish Paramour (TTotH) x3
Thoros of Myr (RoR) x1
Anguy the Archer (DB) x1
Edric Dayne (IG) x1
Lady Stoneheart (MotM) x1
Tom Sevenstrings (RoR) x2
Jack-be-Lucky (OSaS) x1
Quentyn Martell (TGF) x1
The Mad Huntsman (ASoSilence) x1
Ellaria Sand (PotS) x1
Ser Arys Oakheart (PotS) x1
Darkstar (PotS) x1
Beric Dondarrion (IG) x3
The Red Viper (PotS) x2
Arianne Martell (PotS) x1
Location (12)
Hollow Hill (ASoSilence) x1
Lord Doran's Chambers (PotS) x1
The Searoad (KotStorm) x3
Shadowblack Lane (Core) x1
Street of Sisters (Core) x1
Dornish Fiefdoms (PotS) x2
Summer Sea (Core) x3
Attachment (8)
Flaming Sword (DB) x1
Taste for Blood (PotS) x3
Venomous Blade (TBoBB) x3
Poisoned Knife (ASoSilence) x1
Event (6)
Paper Shield (QoD) x3
He Calls It Thinking (PotS) x3
Pretty straight forward fun Martell Brotherhood deck.
The idea is to get Beric out (possibly Summoning Season), Voltron (load tons of attachments on him) him up and protect him (Plots like Calm Before the Storm and Doran's Scheme, as well as events like Paper Shield and He calls it thinking will help with this). Of course you can always win in other ways and there is plenty to help you do that

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