Being a Commander card, Archivist of Oghma is not legal in many other set-specific formats such as Modern and Pioneer, but it will be a hit in the Commander scene for years to come, much like how Opposition Agent has become a common sight in many black decks
(Put the top two cards of your library into your graveyard.) P/T Number 159 Language English Legal Formats Commander, Legacy, Modern, Vintage Not Legal Formats Alchemy, Brawl, Competitive Brawl, Historic, Pauper, Pioneer, Standard, Timeless Rulings (1/24/2025) The ability that defines Splinterfright's power and toughness works in all zones, not just the battlefield
Traumatize Traumatize is a mill half a library sorcery spell like Maddening Cacophony, though it's one mana cheaper for the full effect against one opponent
What if Weevil never threw Yugis Exodia cards overboard
Snapcasters home in Vintage is hard to predict, as there are so many ways you can go with him
I would also put ink acceleration that does not cost you cards from your hand like Mickey Mouse - Detective in this category