"He doesn't even have a sword!!!"

Well can Farro use this moment of Mido's surprise to relieve him of his sword, then?

Farro now has one (1) wooden blade!

"Hey!!!!" Mido picks up a sturdy stick. "You wanna fight so bad, fine, but Saria, you'd better be ready to heal him when I'm done!"

A little green spark flits out from under his hat and wobbles over to Saria. "Are you sure this is a good idea?" she asks.

Saria's own fairy emerges from her hair in turn. "They need this," he tinkles, with a shower of blue sparks. "Good for boys to let it out. Especially when one of them doesn't even have a – well."

"Don't be rude," Saria murmurs. "You'll distract me from the boys hitting each other."

Yes yes rub it in why don'tcha.

He's not gonna give Mido time to get prepared though. Hyaah!

Mido's is an excellent sword. He whittles himself a new one every ten years, varnishes it with oils that won't chip off or get stained, cares for it like some Kokiri care for their pet birds or lizards (or, in Fado's case, Stalfos). It's so well-kept that it's sometimes hard to remember that he uses it, doesn't just wrestle with the others but fights like a real warrior.

But the sword isn't what makes him a warrior. It's the skill. And if all he has is a stick, he can still fight like he's the one with the sword.

...well, the result is overdetermined, then, isn't it? Farro and Mido are both good fighters, at least for twelve-year-olds, but Farro's been twelve for less than a year while Mido's been twelve for... substantially longer than that.