Some Universe Beyond precons falter because they focus more on printing new cards than building a cohesive strategy, as seen here
However, it is no one-trick pony, and the mill and recursion plan offer some resilience
(Artifacts, legendaries, and Sagas are historic.) P/T Number 20 Language English Legal Formats Brawl, Commander, Competitive Brawl, Historic, Legacy, Modern, Pioneer, Timeless, Vintage Not Legal Formats Alchemy, Pauper, Standard Rulings (4/27/2018) A card, spell, or permanent is historic if it has the legendary supertype, the artifact card type, or the Saga subtype
Likewise, pre-release kits from Adventures in the Forgotten Realms included a randomized d20 instead of the usual spindown die, since the set included die-rolling mechanics
Anything that is attached to a creature disappears once it is exiled or sent to the graveyardeven if it comes back to the battlefield immediately
You really need to have a good idea of whats common enough in the format to deserve a slot in your deck, though, and occasionally these cards will still be a dead draw