I don’t rely on Snow White as a cleanser/dispeller in the traditional sense (“get that off me” or “oh no you don’t!”) - I see her as a carpetbomber…
Status effects are necessary to create maximum carnage, you may want to bring multiple status effects of your own.
In maps/events I often bring Miki and Athena with her - fire both, use tiles for 3 turns and then unleash SW before the 4th turn. You could easily do similar with Raffaele (you don’t want to fire them simultaneously and lose the HoT).
Oh and as a sidenote (it’s niche and it’s not why you’d max her!)… You’ll never have more fun in any tournament than you do in rush when you can bring Miki and Snow White together. The control AND damage is unbelievable - in this week’s tournament, Miki + SW were absolutely wrecking Telluria tanks, even when they’re the wrong colour!
Definitely go for 3.70 and have a play - I think you’ll really enjoy her!
And you’ll definitely max her at some point once you’ve seen her in action!