The issue is that the lands these fetches come into play tapped, so you have to wait a turn before you can use them
"Impending N[cost]" is a keyword that represents multiple abilities
If it weren't for this video, I might not remember that MirrorweaveMirrorweave even existed, which is a crime unto itself
While the spike in price is also due to scalping (the practice of buying large quantities of popular or limited-edition products at retail price to reduce supply and increase demand), or the number of new people who only want to collect, if the card gets banned as a result of the skewed metagame, that value will likely drop, pissing off more than one dedicated collector
To complicate things, he is mono-blue which does not support the usual methods for a zombie deck: massive boardwipes, reanimation, and for keeping zombies safe from being exiled with sac outlets
In addition, Toxic Deluge is cheap and color-light to cast, making it easy to play at any phase of the game