I honestly forgot all about them when I was making this program
Magus of the Mirror Magus of the Mirror is a late-game trick to switch life totals and put an opponent in a terrible position
As for the X spells themselves, that includes a rich variety of Hydras such as Hydroid Krasis, which is overwhelmingly strong even without Zaxara there to generate additional value on the side, along with other staple Hydras like Lifeblood Hydra, Protean Hydra, and the mighty Genesis Hydra
There are four permanent types after all (well, for now
Riders of Gavony can grant protection from a specific creature type to all of your humans, and Angel of Glorys Rise can swoop in and rebuild your human army
Not nearly as useful as it is in SP decks, but still useful