An entire mythic cycle of clearly Standard playable creatures with graveyard interaction
Some border radius to reflect what the original cards borders are
The value of Secret Lairs from a players' perspective mostly comes from the fact that they have cool new art, but Secret Lairs offer less value if all you care about is having some version of a card to play with

As promos from the above table expire, they will then be moved here: PlayAlchemyNewCapenna ObscuraConnive RiveteerBlitz CabarettiAlliance MaestroCasualty BrokerShield PlaySNC PlayNEO FNMATHOME AlwaysFinishTheJob PlayTheros PlayIkoria PlayM21 PlayZendikar PlayKaldheim PlayStrixhaven PlayMID PLAYVOW InformationIsPower CrimeIsAnArtForm FunIsntFree PlayNEOAlchemy FNMATHOME Mellon ReadTheFinePrint RepairAndRecharge EnlightenMe WrittenInStone ShieldsUp InnerDemon OverTheMoon SparkleDruid ShinyGoblinPirate FoilFungus ParallaxPotion SuperScry LevelUp ReadTheFinePrint RockJocks ArtClub SwampPunks MathWhizzes TryKaladesh DebateDuelists COURIERBAT CIRCUITMENDER BingoIVMythicChamp BORROWEDTIME BroughtBack Crumbelina DelightfulMeadow ExperimentalOverload FiveBonusLevels FoodCourt GAMEKNIGHTS GOLDENCOMMUNITY HappySwamp IslandWilderness MoveMountains MythicMagic OneBillion PARCELMYR PlayAllegiance RestorativeBurst SCALEUP StarterStyles ThatsWild TisAScratch TreeFriend ZendikarLands What are Magic The Gathering Arena codes used for

You can run this out as a 4-drop, follow up with a proliferate effect or two, and draw some cards
Thanks to the printing of the premier Rogue-Tribal commander, Anowon, the Ruin Thief, Rogues now have access to a commander that not only increases their power but directly converts it into mill