Each card with a number can have this number increased or decreased by one, once per turn.
With one of this card, a bone pillar would always produce
but a quantum pillar could produce 2, 3, or 4 random quanta. A spark could deal 2, 3, or 4 damage, and may even get its life boosted to 1, while a skeleton may die if its life drops.
I would call it Uncertainty Principle, and make it entropy, but that's just me, and I'm putting the idea out there to be stolen, so...not all up to me, I suppose.