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
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
Zalen lets you negate an effect but can actually negate an effect that happened earlier in the Chain
(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
He has two abilities with the first allowing you to move a counter from any creature you control to any other creature you control at the beginning of combat