The vast majority of decks play lands for mana fixing
However, I mentioned this to a colleague of mine who plays Ad Nauseam, and apparently he's been working with Briefing, too
Semi-playables like this are also better with things that let us bounce creatures to our hand, then being able to bestow them
There are a lot of strong Skeleton cards in the game, some of which were so strong it led to their ban and restriction of certain formats
Includes Archivist of Oghma, Clever Impersonator, Consecrated Sphinx, Copy Enchantment, Esper Sentinel, Faerie Mastermind, Flash Photography, Heartwood Storyteller, Mirrormade, Mystic Remora, Notion Thief, Pollywog Prodigy, Rhystic Study, Steal Enchantment, Sylvan Library, The One Ring, Trouble in Pairs, and Wan Shi Tong, Librarian
You can always craft the way you want to play it