Block - Original Build
//NAME: Planeswalker.dec
// Lands
2 Forest
1 Island
1 Mountain
2 Plains
1 Swamp
1 Fire-Lit Thicket
1 Gilt-Leaf Palace
1 Murmuring Bosk
1 Primal Beyond
4 Reflecting Pool
1 Vivid Crag
1 Vivid Creek
2 Vivid Grove
1 Vivid Marsh
1 Vivid Meadow
1 Wooded Bastion
// Creatures
4 Cloudthresher
4 Farhaven Elf
4 Mulldrifter
4 Shriekmaw
// Enchantments
4 Fertile Ground
4 Oblivion Ring
// Spells
2 Austere Command
4 Firespout
2 Incendiary Command
// Planeswalkers
1 Ajani Goldmane
1 Chandra Nalaar
2 Garruk Wildspeaker
1 Jace Beleren
1 Liliana Vess
// Sideboard
SB: 2 Austere Command
SB: 2 Horde of Notions
SB: 2 Incendiary Command
SB: 3 Primal Command
SB: 4 Runed Halo
SB: 2 Vexing Shusher
// Lands
2 Forest
1 Island
1 Mountain
2 Plains
1 Swamp
1 Fire-Lit Thicket
1 Gilt-Leaf Palace
1 Murmuring Bosk
1 Primal Beyond
4 Reflecting Pool
1 Vivid Crag
1 Vivid Creek
2 Vivid Grove
1 Vivid Marsh
1 Vivid Meadow
1 Wooded Bastion
// Creatures
4 Cloudthresher
4 Farhaven Elf
4 Mulldrifter
4 Shriekmaw
// Enchantments
4 Fertile Ground
4 Oblivion Ring
// Spells
2 Austere Command
4 Firespout
2 Incendiary Command
// Planeswalkers
1 Ajani Goldmane
1 Chandra Nalaar
2 Garruk Wildspeaker
1 Jace Beleren
1 Liliana Vess
// Sideboard
SB: 2 Austere Command
SB: 2 Horde of Notions
SB: 2 Incendiary Command
SB: 3 Primal Command
SB: 4 Runed Halo
SB: 2 Vexing Shusher
Created for some playtesting vs other block decks, I found that I liked it a lot. Ended up attending a Standard Event that I didn't plan to. Played it to a 2-2 day with each match being tight. Later played it in a Legacy tournament to another 2-2 day. A week of playtesting later, I rebuilt the deck with Legacy in mind.
Legacy Version
//NAME: Legacy of the 'Walker
// Lands
1 Forest
1 Island
1 Mountain
1 Plains
1 Swamp
2 Bayou
1 Murmuring Bosk
1 Primal Beyond
3 Reflecting Pool
2 Savannah
1 Taiga
1 Tendo Ice Bridge
1 Tropical Island
1 Vivid Grove
2 Windswept Heath
2 Wooded Foothills
// Creatures
4 Mulldrifter
4 Sakura-Tribe Elder
4 Shriekmaw
4 Wood Elves
2 Horde of Notions
// Spells
2 Krosan Grip
4 Swords to Plowshares
3 Damnation
2 Primal Command
3 Wrath of God
// Planeswalkers
1 Ajani Goldmane
1 Chandra Nalaar
2 Garruk Wildspeaker
1 Jace Beleren
1 Liliana Vess
// Sideboard
SB: 3 Arashi, the Sky Asunder
SB: 4 Cloudthresher
SB: 2 Krosan Grip
SB: 4 Pyroclasm
SB: 2 Riftsweeper
// Lands
1 Forest
1 Island
1 Mountain
1 Plains
1 Swamp
2 Bayou
1 Murmuring Bosk
1 Primal Beyond
3 Reflecting Pool
2 Savannah
1 Taiga
1 Tendo Ice Bridge
1 Tropical Island
1 Vivid Grove
2 Windswept Heath
2 Wooded Foothills
// Creatures
4 Mulldrifter
4 Sakura-Tribe Elder
4 Shriekmaw
4 Wood Elves
2 Horde of Notions
// Spells
2 Krosan Grip
4 Swords to Plowshares
3 Damnation
2 Primal Command
3 Wrath of God
// Planeswalkers
1 Ajani Goldmane
1 Chandra Nalaar
2 Garruk Wildspeaker
1 Jace Beleren
1 Liliana Vess
// Sideboard
SB: 3 Arashi, the Sky Asunder
SB: 4 Cloudthresher
SB: 2 Krosan Grip
SB: 4 Pyroclasm
SB: 2 Riftsweeper
The deck was piloted to a 4-0 victory (8-1). It beat Elves in Round 1, Stifle-Naught in Round 2, Reanimator in Round 3, and finally the Rock in Round 4.
I plan to create a Standard Version soon.