Interesting art and theme. Mind specifying what Override means in this context? The name suggest something like "target pillar now generates quanta of your mark" or something, not like this.
Would a name like Implode work?
Anyways, interesting mechanic, although I am almost sure I've seen this before.
What happens when you cast more than once per turn? A Singularity?
Also, I'm assuming this is only one in the stack right? Not the entire stack disappearing and creating mass quanta?