How does the point system works ?

[ONF]

I don't know about other modes but in 2vs2, the goal for the team is to reach 500 points, and when each round ends the winner team gets some points , sometimes they gain 305 points , sometimes they gain 10 points.

And here is my question , is it just RNG or is there something that effect the points?
like how many cards i played or how many cards does the enemy team have in their hand ?

[prettytail]

Every card has been set a particular point(s), and total of opponents' cards points remaining at the time each round ends is given to winners as a match score.

Numbers Card: 0 ~ 9 points those depend on the face value
Draw, Skip, or Reverse card: 20 points each
Wild and Wild Draw 4 card: 50 points each

I'm not sure how many points the DLC unique cards have.