This graveyard-based mechanic has since found its way to a handful of cards, some better than others
Thoughtseize is the spell that most players first think of when asked about discard spells, as it's capable of discarding any single card you want from your opponent's hand
Wizards of the Coast created a whole Magic set based on the Lord of the Rings IP, along with four Commander decks, and some MTG Secret Lairs for good measure
Planets don't have to be round, they can be corkscrew-shaped, or broken into shattered pieces
There is a Contagion Engine deck out there waiting to be made
Wheeling away your hand when it enters shows you lots of cards and stocks the graveyard (and perhaps triggering some discard synergies), then the second ability sets up your board to become incredibly threatening