Would you mind showing that NR decklist ?I tried a similar NG deck already, it was the first thing i tried as soon as the seasonal mode came out, as many did, since lots of seasonal quests motivate using a witcher deck.
But even though i had some success with it, and lots of mirror matches, i didnt feel like i was gonna win everytime, which happened when i changed to NR and started playing with my opponents, no matter what i did, i would win. I think i lost 3 times with NR, twice against other high level NR players, and only once against a NG witcher deck that managed to lineup a mega igni.
Honestly, i think using geralts that target a single target is no match for NR point slam, when EVERY SINGLE PLAY i do the entire match is worth at least 10pts, while NG has power moves with the gold witchers, but their bronzes dont attain the same value, not even with poison.
You're against using renew, which is 14prov, but you use the witcher trio that only provides 18pts (21 with Vesemir boost) for 24 provisions, and can be easily Yrden'ed which breaks even immediately, even without other units on the row.
The use of Arbalest to banish a card, could definitely be a gamechanger, against my strategy it would increase the opponents odds by a lot, but i cant judge if you're getting enough value from it.
From my current observations I feel far more comfortable running NG and do not see how your NR pointslam is supposed to outperform proper NG Witcher decks (outside of the ridiculous Visegerd + Igni play).
Honestly I found that opposite to the previous Seasonal Mode the person going second is at an insane advantage, which is the largest factor deciding who wins (that and if one runs either of NR or NG).