You play this not because it is reliable removal but because missing your lands drops is unrecoverable and this is one of the only on theme tools available to help with that
Prized Unicorn is an exception, and is best used when an opponent has enough creatures to block and absorb all the damage Mowu could do
These lands arent particularly powerful, but can be good budget options in longer games since you can throw away the lands for another draw in a pinch
Ruination Guide Ruination Guide can lend a hand in a deck built around morph, manifest, cloak, or disguise, since your face-down creatures are colorless, and it now has a devoid commander that it can help, too
Challenging and questing also make characters vulnerable, so finding the right tempo is key to winning the game
The M21 prerelease foil is priced at $21