What's the best build for my +ATK -RES Elincia?

I have a +ATK/-RES Elincia, and currently running 4x brave build. However it got killed fairly easily by counter attacking blues and tanks as Desperation III wouldn't trigger even after using Ardent Sacrifice. (I'm even considering Miracle as Special if it means to trigger Desperation)

So I would like to know what's the best build and partner for Elincia. Thanks