My blue decks want to hold up countermagic as early as turn two, as theres often enough pressure to require a sweeper by turn four
Spellslinger decks around the world want a land that not only triggers your cards but also adds a synergy piece
When you cast this spell, target opponent exiles the top four cards of their library, then you may put any number of land cards that player owns from exile onto the battlefield under your control. Because it considers all exiled cards, this means that casting this after some of the other cards on this list will get you a lot more than just the four cards it hits on its own
For example, when Della is played, a character with Boost can be readied, protecting them from challenges
Sending Mufasa back to hand is extra punishing when you have to sacrifice ink to play him again
That precision makes it one of the best black instants in MTG for competitive play