As I always do when a card I like gets knocked out of a design, I save it for the next design team I'm on
Whitening cannot be restored, as it involves missing ink
Exile everything that cares about enters the battlefield and then enjoy the value
The ability is pretty useless here, though, despite Through the Breachs high price tag
Stealing with Nihiloor | Commander | Abe Sargent Commander (1) 1 Nihiloor Creatures (20) 1 Burnished Hart 1 Cloudblazer 1 Coffin Queen 1 Commander Eesha 1 Consecrated Sphinx 1 Darksteel Sentinel 1 Empress Galina 1 Fog Bank 1 God-Eternal Bontu 1 Hostage Taker 1 Merieke Ri Berit 1 Mind Flayer 1 Mulldrifter 1 Old Man of the Sea 1 Preacher 1 Seasinger 1 Sower of Temptation 1 Solemn Simulacrum 1 Stuffy Doll 1 Wall of Omens Planeswalkers (2) 1 Tevesh Szat, Doom of Fools 1 Venser, the Sojourner Instants (13) 1 Counterspell 1 Desertion 1 Dismiss 1 Dissipate 1 Fact or Fiction 1 Mana Drain 1 Ray of Command 1 Reins of Power 1 Spelljack 1 Stroke of Genius 1 Swords to Plowshares 1 Utter End 1 You Find the Villains' Lair Sorceries (5) 1 Acquire 1 Bribery 1 Inevitable Betrayal 1 Mass Manipulation 1 Vindicate Enchantments (8) 1 Confiscate 1 Control Magic 1 In Bolas's Clutches 1 Lay Claim 1 Phyrexian Arena 1 Take Possession 1 Vampiric Rites 1 Volition Reins Artifacts (14) 1 Arcane Signet 1 Armillary Sphere 1 Blasting Station 1 Chariot of Victory 1 Commander's Sphere 1 Expedition Map 1 Haunted Cloak 1 Helm of Possession 1 Lightning Greaves 1 Sol Ring 1 Strider Harness 1 Swiftfoot Boots 1 Sword of Vengeance 1 Whispersilk Cloak Lands (37) 6 Swamp 7 Island 7 Plains 1 Access Tunnel 1 Ancient Tomb 1 Arcane Sanctum 1 Bojuka Bog 1 City of Brass 1 Command Tower 1 Evolving Wilds 1 Exotic Orchard 1 Godless Shrine 1 Hallowed Fountain 1 High Market 1 Mana Confluence 1 Reflecting Pool 1 Rogue's Passage 1 Temple of the False God 1 Terramorphic Expanse 1 Watery Grave And there we are
As a brief mathematical aside (feel free to check my work, Quandrix nerds), here is a short comparison of non-generic/staple overlaps with the appropriate predecessor across each Secrets of Strixhaven Commander deck, not counting Sol Ring or Arcane Signet nor generic/staple lands: 7 cards from Silverquill Influence overlap with Silverquill Statement 10 cards in Witherbloom Pestilence to Witherbloom Witchcraft 10 cards in Prismari Artistry to Prismari Performance 5 cards in Lorehold Spirit to Lorehold Legacies 9 cards in Quandrix Unlimited to Quantum Quandrix Seeing the data laid out as such, it's hard to justify my vibes-based analysis as anything more than a poorly calibrated vibes antenna
