Ok here I go. First I would need the crafting system and transmutation systems reworked first.
You no longer need to roll Rivens to get stats, you make them. Various stats are tied to crafting materials for different effects. A crafting material might have some effect like +slash (&) -puncture. Expand the amount bonuses and negatives we can have. Change disposition. Make it where it's totally possible to have a 5 star disposition Tigris Riven or some other popular weapon, BUT now the disposition is tied to MR. You want to be able to use that high disposition riven? You have to show S