This is strongest in one-on-one games, where stripping a single card can shape the entire match
At the time, they were ruled to work on cards that were exiled, so you'd have some brews that simply exiled some of your library and then tutored the exiled fun time with a Wish to find the perfect card
Therefore you can boost your and for the mythos and don't spend charges during your turn to prevent the card from being discarded
However, they're also not too difficult to counter, and unlucky card draws can really strangle a game
Sleep of the Dead Similarly to Glimpse of Freedom, Sleep of the Dead is something I can only really recommend if your deck really wants as many graveyard-castable spells as it can have
Powerful staples like Lightning Bolt and Counterspell prove that some of the most valuable MTG commons are those that define entire strategies and see play in competitive formats