35 cards where (the text includes “ pile” or the text includes “guess”) and the color identity ≤ BUW and it’s legal in Commander

Atris, Oracle of Half-Truths (Theros Beyond Death #209)
Become Anonymous (Assassin's Creed #14)
Boneyard Parley (Commander 2019 #107)
Brilliant Ultimatum (Shards of Alara #159)
Curator of Destinies (Foundations #34)
Death or Glory (Invasion #13)
Do or Die (Invasion #102)
Epiphany at the Drownyard (Shadows over Innistrad #59)
Fact or Fiction (Commander Masters #91)
Fight or Flight (Invasion #16)
Fortune's Favor (Eldritch Moon #61)
Ghastly Conscription (Commander 2019 #115)
Gollum, Scheming Guide (The Lord of the Rings: Tales of Middle-earth #292)
Hostile Negotiations (The Brothers' War #105)
Intrude on the Mind (Murders at Karlov Manor #61)
Jace, Architect of Thought (Commander Masters #851)
Jeskai Infiltrator (Commander 2018 #93)
Liar's Pendulum (Mirrodin #196)
Liliana of the Veil (Dominaria United #97)
Make an Example (New Capenna Commander #37)
Mangara's Tome (Mirage #309)
Master of Predicaments (Magic 2015 #67)
Parallel Thoughts (Scourge #44)
Phyrexian Portal (Masters Edition II #217)
Pileated Provisioner (Bloomburrow #25)
Sauron's Ransom (The Lord of the Rings: Tales of Middle-earth #225)
Sphinx of Clear Skies (Dominaria United #67)
Sphinx of Uthuun (Commander Legends #406)
Spire Phantasm (Conspiracy: Take the Crown #37)
The Celestial Toymaker (Secret Lair Drop #1582)
The Seventh Doctor (Doctor Who #158)
The Toymaker's Trap (Doctor Who #72)
Triumph of Saint Katherine (Warhammer 40,000 Commander #17)
Truth or Tale (Time Spiral #89)
Unesh, Criosphinx Sovereign (Hour of Devastation #52)

The arc of my blade has carved a path of light to the end of these results.