L!Grima

So I have 2 L!Grima as I was saving one for maybe Res Smoke fodder eventually. But with the upcoming merge changes, it might just be more worth it to +1 her. But then the question becomes +atk/-spd or +res/-atk L!Robin, which now the bane won't really matter come February. But +atk or +res which would be better the extra 4 res or the extra 3 attack? Given how she lacks TA being colorless.