Bitter Reunion will discard one, draw two on arrival to the battlefield, and then you can sac it for one mana to give your stuff haste for the turn, so you can trigger descend twice over two turns here
Itll see most play, though, in builds looking to capitalize on that Storm keyword
Pharika - The serpentine god of affliction, both poison and healing, and mother of all gorgons
Whereas a "Scry two" will let you look at the top two cards of your library, being told to "scry one" twice will let you look at the top card, decide where it goes, and then look at the top card again
While getting a Lightning Greaves is nice, many players will already have a copy and Everlasting Torment is a fringe card at best
Some examples would be Siren's Ruse, Cloudshift, and Displace