The Walls of Ba Sing Se makes every other permanent indestructible. This colorless walls deck ramps hard into it, so the defender bodies and mana rocks become nearly impossible to wipe away. The deck builds a durable board of high-toughness walls behind a fortress of anti-attack artifacts, then turns that toughness into offense: defenders attack and deal damage equal to their toughness, backed by evasion granters and colorless value engines. How it wins: It turns huge-toughness defenders into attackers that deal damage equal to their toughness and makes them unblockable or flying, while value engines like Ugin and Echoes of Eternity grind opponents down behind an unbreakable board. Key roles: - Colorless ramp to an 8-drop: Many mana rocks, the Tron lands and colorless-mana doublers get the commander and other expensive artifacts down early, and indestructibility shields the rocks from artifact sweepers. (Urza's Tower, Forsaken Monument, Karn, Legacy Reforged) - Defender wall: A broad base of cheap high-toughness walls, plus a tutor to find more, absorbs attacks and forms the board the commander makes permanent. (Shield-Wall Sentinel, Wall of Junk, Shifting Wall) - Fortress and damage control: Combat restrictions, extra blocks and damage redirection keep the player's life total safe. Redirected damage lands on an indestructible creature, and the commander itself can soak large amounts. (Crawlspace, Pariah's Shield, Echo Circlet) - Toughness-as-damage offense: Defenders are allowed to attack and deal damage equal to their toughness. Walls, artifacts and lands with unblockable, flying or haste-granting abilities provide the evasion and speed. This makes the commander's 30 toughness a lethal threat. (Walking Bulwark, Suspicious Bookcase, Towering Viewpoint) - Copy and doubling engine: Equipment and lands copy key creatures each turn, and colorless triggers and spells are doubled or copied, multiplying walls, attackers and value artifacts. (Helm of the Host, Echoes of Eternity, Hall of Echoes) - Colorless card advantage: Top-of-library casting, free casts off scry, and refilling the hand keep threats flowing. Planeswalkers add removal and pressure. (Mystic Forge, Planetarium of Wan Shi Tong, Ugin, the Ineffable)

The Walls of Ba Sing Se decklist

• Basalt Monolith
• Cloud Key
• Commander's Plate
• Coveted Jewel
• Crawlspace
• Darksteel Plate
• Echo Circlet
• Everflowing Chalice
• Forsaken Monument
• Hedron Archive
• Helm of the Host
• Horizon Stone
• Lightning Greaves
• Mana Vault
• Manifold Key
• Mind Stone
• Mox Opal
• Mystic Forge
• Pariah's Shield
• Planetarium of Wan Shi Tong
• Pristine Talisman
• Sculpting Steel
• Sensei's Divining Top
• Sol Ring
• Sol Talisman
• Swiftfoot Boots
• The Immortal Sun
• The Ten Rings
• Thought Vessel
• Thran Dynamo
• Unwinding Clock
• Worn Powerstone
• Adventurer's Inn
• Ancient Tomb
• Buried Ruin
• Command Beacon
• Conduit Pylons
• Crystal Grotto
• Darksteel Citadel
• Hall of Echoes
• Inventors' Fair
• Reliquary Tower
• Rogue's Passage
• Sanctum of Ugin
• Scavenger Grounds
• Shrine of the Forsaken Gods
• Temple of the False God
• Thespian's Stage
• Tomb of the Spirit Dragon
• Urza's Cave
• Urza's Factory
• Urza's Mine
• Urza's Power Plant
• Urza's Saga
• Urza's Tower
• Urza's Workshop
• Vesuva
• War Room
• 8× Wastes
• Zhalfirin Void
• Amaranthine Wall
• Consulate Skygate
• Crashing Drawbridge
• Cryptothrall
• Emrakul, the Exigent Doom
• Foundry Inspector
• Gleaming Barrier
• Hedron Crawler
• Karn, Legacy Reforged
• Omnath, Locus of the Void
• Palladium Myr
• Roving Keep
• Scrawling Crawler
• Shield Sphere
• Shield-Wall Sentinel
• Shifting Wall
• Steel Wall
• Suspicious Bookcase
• Towering Viewpoint
• Walking Bulwark
• Wall of Junk
• Weathered Sentinels
• Echoes of Eternity
• Kozilek's Command
• Null Elemental Blast
• Warping Wail
• Zuko's Exile
• Ugin, the Ineffable
• Ugin, the Spirit Dragon
• Aang's Journey
• Wastes
• Crystal Vein