I sniped Noire really hard and when I went up to a 4.50% pity rate, I finally got her with 3 hours left in the banner. I had to grind really hard. When I checked her IVs, she came out -Atk/+Res... :/
Any recommended builds?
Summer Noire, Innes, and Cordelia have perfect weapons, and speed stats, for Desperation builds. Their weapons give +2 to their stats when initiating. Just plop an A slot, like Fury or even a Brazen, and Desperation for the B slot. The C and Seal slots are fairly flexible as well.
You can also make Noire a debuffer thanks to Clarisse's Bow... but most people wouldn't want to do that, so.. :l
I say make her more supportive than offensive, because she has Infantry Rush and it pairs well with the Drive Atk Seal. Then when it comes out give her Atk Feint with an Attack increasing Rally. Granted I think this build suits Takumi or Anna better because of movement weapons and refines, but if you don't wanna invest into a unit you don't care about, then I understand.
Expensive, I know, but you can still make her an offensive fanatic with Fury/L&D with Desperation, really it's all your choice.
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