Which is why it's bad writing.
"Unblockable killing spell" is the kind of thing that pops up on a middle school playground because every kid wants to have the trump card in make-believe and the last kid just cast Meteor.
Eragon is a contemporary-ish book and has killing magic that can kill normies by the dozens/hundreds, but other magic users have to do more than play rock-paper-nuclear-option.
It's 3D compared to pinball videogames from the 70s/80s, which were decidedly not. It actually looks like a pinball game that could exist, the ball moves relatively realistically, and has paths that go 'over' the main play field.