I vote keep as is for 2 reasons.
1. We already have a lot of points out and making it harder makes it A LOT harder for anyone low on points or new to starting the challenge.
2. Having more copies or 10 in-element cards makes building decks so much harder with higher chance of auto-lose FG: can't really make a good bow, 10 dead cards potentially vs some FGs. example: gravity shield vs osiris.