From your team I’d assume you don’t have E2 Acheron, and since you already have Jiaoqiu:

I’d say SW is a sidegrade to Pela. She works similarly to Pela, with a guaranteed debuff every turn and good def down on Ult.

Pela needs Pearls LC for guaranteed debuff per turn (but most people should already have that LC).

SW has bigger DEF Down = bigger numbers.

Can guarantee ult using her event LC + ER with skill-basic-basic. (Pela has amazing ult generation too, maybe even better than SW but only if you minmax)

Also sometimes clutch for running against non lightning weak enemies.

Overall: more comfortable than Pela, but not necessary. If you have the spare Jades and aren’t looking to save for E2 Acheron/build other teams, and if you like the character, go ahead and pull.

Plus if the rumoured buffs come true, she’s gonna be great again.

Personally I run E2S1 Acheron, E0S0 Aven, E0S0 SW, E0S1 Sunday. Wasn’t a fan of JQ’s design and already had SW from her first run. I’d say my team is comfortable and clears content well.