Let's say you're playing a deck with a bunch of midrangey creatures that happen to have cycling, like Archfiend of Ifnir, Curator of Mysteries, Krosan Tusker, or whatever powerful cyclers we end up with in Ikoria Standard
Apple of Eden, Isu Relic Our highest scoring permanent, artifact, historic card and legendary is this four-drop that taps for no mana, just a loss of four life at sorcery speed and this self-sacs
Finally, we have the far-less-exciting-but-still-possibly-viable Wickerfolk Indomitable
One way to do this is to empty your entire library into your graveyard with something like Hermit Druid or Brain Freeze, then return a card like Thassa's Oracle or Laboratory Maniac with any number of reanimation effects
The copy is created on the stack, so it's not "cast." Abilities that trigger when a player casts a spell won't trigger