Your search for "plains 323" revealed the following:
Plains (323) (C15) from Commander 2015, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: John Avon
Plains (333) (TMP) from Tempest, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Terese Nielsen Card Text:T: Add W to your mana pool.
Plains (333) (6ED) from Classic Sixth Edition, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Douglas Shuler
Plains (333) (INV) from Invasion, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: D. J. Cleland-Hura
Plains (333) (SCD) from Starter Commander Decks, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Alayna Danner
Plains (333) (ODY) from Odyssey, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Eric Peterson
Plains (333) (MMQ) from Mercadian Masques, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Dana Knutson
Plains (331) (6ED) from Classic Sixth Edition, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Tom Wänerstrand
Plains (293) - Full Art (NEO) from Kamigawa: Neon Dynasty, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Amayagido Card Text:T: Add W.
Plains (332) (6ED) from Classic Sixth Edition, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Tom Wänerstrand
Plains (331) (ODY) from Odyssey, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Alan Pollack
Plains (031) (SLP) from Secret Lair Promo, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: John Avon
Plains (331) (INV) from Invasion, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: John Avon
Plains (393) - The Astrology Lands (Foil) (SLD) from Secret Lair Drop, available at 401 Games Canada. Rarity: Rare Finish: Foil Artist: Jeanne D'Angelo Card Text: Zodiac Lands
Plains (001) - Arena League Promo 2003 (PAL03) from Arena League 2003, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: Rob Alexander
Plains (343) (7ED) from Seventh Edition, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Rob Alexander
Plains (331) (ONS) from Onslaught, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Rob Alexander
Plains (338) (C13) from Commander 2013, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Michael Komarck
Plains (331) (TMP) from Tempest, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Terese Nielsen Card Text:T: Add W to your mana pool.
Plains (030) (BRC) from The Brothers' War Commander, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Jorge Jacinto
Plains (334) (8ED) from Eighth Edition, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Fred Fields
Plains (334) (6ED) from Classic Sixth Edition, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Fred Fields
Plains (135) (PCA) from Planechase Anthology, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Jung Park
Plains (332) (INV) from Invasion, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Ben Thompson
Plains (334) (TMP) from Tempest, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Terese Nielsen Card Text:T: Add W to your mana pool.
Plains (334) (SCD) from Starter Commander Decks, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Titus Lunter
Plains (393) (LCI) from The Lost Caverns of Ixalan, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Carlos Palma Cruchaga
Plains (332) (Foil) (8ED) from Eighth Edition, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Matthew Mitchell
Plains (332) (8ED) from Eighth Edition, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Matthew Mitchell
Plains (340) (C13) from Commander 2013, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Andreas Rocha
Plains (331) (Foil) (INV) from Invasion, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: John Avon
Plains (123) (GN3) from Game Night: Free-for-All, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Alayna Danner
Plains (231) (M13) from Magic 2013, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Noah Bradley
Plains (BFZ) (#253) from Battle for Zendikar, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Vincent Proce
Plains (306) (40K) from Warhammer 40,000 Commander, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Zhillustrator
Plains (337) (C16) from Commander 2016, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Rebecca Guay
Plains (233a) (ZEN) from Zendikar, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Vincent Proce
Plains (043) (JMP) from Jumpstart, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Lius Lasahido
Plains (233) (M13) from Magic 2013, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Charles Urbach
Plains (332) (Foil) (INV) from Invasion, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Ben Thompson
Plains (335) (SCD) from Starter Commander Decks, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: James Paick
Plains (263) (AFR) from Adventures in the Forgotten Realms, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Sarah Finnigan
Plains (331) (MIR) from Mirage, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Tom Wänerstrand Card Text:T: Add W to your mana pool.
Plains (390) - The Astrology Lands (Foil) (SLD) from Secret Lair Drop, available at 401 Games Canada. Rarity: Rare Finish: Foil Artist: Jeanne D'Angelo Card Text: Zodiac Lands
Plains (263) (XLN) from Ixalan, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Min Yum
Plains (302) (ACR) from Assassin's Creed, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Borja Pindado
Plains (339) (C13) from Commander 2013, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Jung Park
Plains (338) (C16) from Commander 2016, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Mark Poole
Plains (787) (CMM) from Commander Masters, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Richard Wright
Plains (312) (TRK) from Star Trek, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Shahab Alizadeh