Yuzuha protips incoming.
I recommend a balanced overview to her gearing.

If you run her with Rina's Sig engine an plan on upgrading Rina Sig towards P5, then you get plenty of DMG% bonus and you won't need Protopunk so much, you can actually just 2p Phaethon + 2p Swingjazz + 2p some other surplus disc you have in your storage.

If you run her with Lucy's Sig, then you get a lot of ATK% which is also good, you can balance this with Protopunk to up your DMG% a bit, which is a healthy thing to do when you have extra ATK%.

Freedom Blues duration: 8 seconds
Protopunk duration: 10 seconds
Swing Jazz duration: 12 seconds + free ER

Swing Jazz wins for Anons who have C2 Yuzuha.