This Grixis colored four-drop is also in my Commander Cube

A Trail of Teacups Aberrant Researcher Acolyte of Affliction Admiral Brass, Unsinkable Advanced Reconstruction Aftermath Analyst Ainok Wayfarer Airlift Chaplain Altar of the Wretched Angel of Suffering Another Chance Anowon, the Ruin Thief Argoth, Sanctum of Nature Ark of Hunger Armored Skaab Ashcoat of the Shadow Swarm Ashcoat of the Shadow Swarm Atrocious Experiment Autumnal Gloom Avatar Destiny Aven Heartstabber Awaken the Honored Dead Ballad of the Black Flag Bane-Marked Leonin Barrowgoyf Belltower Sphinx Beluna Grandsquall Beluna Grandsquall Billowing Shriekmass Black Widow, Daring Operative Blanchwood Prowler Blight Titan Blood Spatter Analysis Bloodcurdler Blossoming Tortoise Bramble Familiar Bramble Familiar Bristlebud Farmer Bruvac the Grandiloquent Burrowing Razormaw Cache Grab Carrion Cruiser Carrion Grub Cauldron's Gift Cemetery Tampering Cephalid Aristocrat Cephalid Illusionist Cephalid Vandal Chains of Mephistopheles Charmed Pendant Circle of the Land Druid Cloudhoof Kirin Colossal Badger Colossal Badger Colossal Grave-Reaver Combustible Gearhulk Convergence of Dominion Coral Colony Corpse Churn Court of Cunning Covetous Castaway Crawling Infestation Crawling Sensation Crop Sigil Crow of Dark Tidings Daggerfang Duo Dakmor Salvage Darkblast Dawnhand Eulogist Deadbridge Chant Death's Oasis Deathbonnet Sprout

Unless you were in an explicitly multicolored environment, you just didn't see gold cards very often
Is Phyrexian Librarian legal to play
Cards like Niv-Mizzet, Parun and The Howling Abomination do wonders with multiple spells cast, even if you arent actively a storm build
Cards under $2 are kind of tricky, and the Card Kingdom API occasionally hits something like an oversized copy or some wild, terrible variant when the other stuff either sells out or costs more