UR spell decks are the most likely home for this planeswalker
That said, always having access to the top card of the library is very useful, and there aren't a lot of cards that allow players to cast any card from the top
A counterpoint to my previous argument: Everybody knows that historically blues got better spells overall in MTG, and the MTGO Vintage Cube shows it
Other than Spike Feeder, of course which breaks even
Setting all of your opponents back while keeping your board intact is devastating
Number 396 Language English Legal Formats Alchemy, Brawl, Commander, Competitive Brawl, Historic, Legacy, Modern, Pioneer, Standard, Timeless, Vintage Rulings (11/8/2024) If you have fewer than X cards in your library, you reveal all of them