This is just a quick showcase about 2 swords for electro Keqing. The Lion's Roar are more like damage amplifier sword, with average atk increase, but the passive are really OP, while The Aquila Favonia has really high base atk, and +20% atk from the passive (+25% R2 Aquila Favonia) and high physical damage stats , but it doesn't mean you cannot go as electro build for your Keqing, so here's the differences between R5 Lion's Roar vs R2 Aquila Favonia