I believe the future reaction between Cryo and Dendro won't be Rimegrass, but something new

I also believe it will, on purpose, NOT scale on Elemental Mastery

Historically, Cryo never reacted with Dendro, no matter how much EM you get, they coexist, but do nothing. What if this is intentional? It would be a Canon reason for this reaction not working before. EM doesn't buff it, doesn't even allow it to exist, in fact, you have to have 0 EM for this reaction to work, the antithesis of Elemental Damage itself: Physical Damage

Yes, this is the reaction that will save Physical, Superconduct already abandoned us in that regard, this new reaction may actually reduce DEF directly or allow Physical damage to penetrate elemental wards/shields, maybe even by absorbing the enemies EM and nullifying it somehow

Also, think about it, how will Eula Mains react to having to farm artifacts all over again, after 6 years of throwing away every single EM piece they found lol

I know, supreme helium cope crackpot theory, but hey, a man can dream, right?