Nice quickie card!
yeah, can't say I know much about coding, and especially not about Elements coding. Thought it might have some particular difficulties, but thought I would throw it out there for brainstorming. And, yes, I think I mean that the quanta production would change to the elements in your hand, say divided as close as possible evenly among them.
Did not mean that it would switch everything like discord. I guess I thought if that were how it worked, that might almost be too powerful, but I guess that all depends on how many quanta you have in your possession at the time you play the card.
If it is easier to code, then the idea about focusing on one particular element is about the same thing. It would at least allow you to almost guarantee that you could get a card out in a particular element in the next round, which is nice.
Anyway, hope the idea gets a bit of juices flowing for other better ideas . . .