So... You pack this, you pack several boneyards as you need fodder for this spell, you need "living" creature played, that creature has to be killed so you can get skeletons, then you place bonewall, and after one turn and all quanta drained you have... large bonewall.
And you build a card deck that looks something like 6 boneyards, 3-4 bonewalls, 6 creatures, 2 of these, 12+ pillars as everything here is rather expensive... Thats a slow slow deck that requires great draw to even work, and perma control during that turn you're waiting ruins your whole strategy.
You also have to have a way to kill your own creature, as your opponent is not a blind idiot, and packing Aflatoxin slows the deck even more.
Card feels powerful, but its not that practical really.