Serena sees Eevee’s dancing and Swift attack, and sees just how impressive and graceful and powerful it’s movements can be during the battle. The battle, I might remind you, the entire point of was trying to help Eevee get out of her shell. Instead of cowering, Eevee was dominating.
(lol miscolored frame)
After the Swift ends, Serena clenches her fists and makes her decision. Even Ash notices a change in Serena’s temperament.
But Serena is so happy.
She’s seen all she’s needed to. The battle has served it’s purpose. And now that she’s seen it, it’s time to focus on the real work that needs to be done, practicing for the Showcase.
As for Serena being weak, I will note that Eevee literally outdanced a dance battler that’s given Ash a hard time in the battles he’s had against Tierno and Squirtle/Wartortle/Blastoise, Goomba Stomping it’s face before forcing it back with a Swift attack.
Serena will be fine. Serena is strong.
