The Deck:

Commander:
Arcades, the Strategist

Creatures:
1 Shield Sphere
1 Perimeter Captain
1 Walking Bulwark
1 Wall of Runes
1 Crashing Drawbridge
1 Flumph
1 Jeskai Barricade
1 Overgrown Battlement
1 Stalwart Shield-Bearers
1 Sunscape Familiar
1 Sylvan Caryatid
1 Tetsuko Umezawa, Fugitive
1 Vine Trellis
1 Wall of Blossoms
1 Wall of Junk
1 Wall of Mulch
1 Wall of Omens
1 Wall of Roots
1 Wall of Shards
1 Wall of Tanglecord
1 Axebane Guardian
1 Carven Caryatid
1 Drift of Phantasms
1 Hover Barrier
1 Wall of Denial
1 Wall of Frost
1 Weathered Sentinels
1 Shield-Wall Sentinel
1 Tree of Redemption
1 Wall of Stolen Identity
1 Wingmantle Chaplain
1 Mnemonic Wall
1 Zopandrel, Hunger Dominus

Instants:
1 Swan Song
1 Swords to Plowshares
1 Counterspell
1 Cyclonic Rift
1 Heroic Intervention
1 Mana Drain
1 Tower Defense
1 Bar the Door
1 Beast Within
1 Eerie Interlude
1 Flawless Maneuver
1 Ghostway
1 Akroma's Will

Sorceries:
1 Retribution of the Meek
1 Slaughter the Strong
1 Expel the Interlopers
1 Fell the Mighty
1 Last March of the Ents
1 Dusk // Dawn

Artifacts:
1 Meekstone
1 Sol Ring
1 Chromatic Lantern
1 Rammas Echor, Ancient Shield

Enchantments:
1 Assault Formation
1 Brave the Sands
1 Aura Shards
1 High Alert
1 Rhystic Study
1 Stoneskin
1 Aluren
1 Court of Ardenvale

Planeswalkers:
1 Huatli, the Sun's Heart
1 Teyo, Geometric Tactician

Lands:
1 Bountiful Promenade
1 Breeding Pool
1 Command Tower
1 Flooded Grove
1 Flooded Strand
2 Forest
1 Glacial Fortress
1 Hallowed Fountain
1 Hinterland Harbor
3 Island
1 Misty Rainforest
1 Mystic Gate
4 Plains
1 Reflecting Pool
1 Rejuvenating Springs
1 Reliquary Tower
1 Savannah
1 Sea of Clouds
1 Spara's Headquarters
1 Sunpetal Grove
1 Temple Garden
1 Tropical Island
1 Tundra
1 Windswept Heath
1 Wooded Bastion
1 Yavimaya Hollow
1 Yavimaya, Cradle of Growth

The Gameplan:

The best defense is the best offense.

Walls are cheap to cast and have a large toughness, the drawbacks being they have 0 to little attack power and can't attack on their own.

We build an army of walls and wait, eventually enabling them to attack with Arcades, Assault Formation or High Alert.