You can't do echolocation with Fus Ro Dah, Flan.

I wonder how many people are gonna be incapacitated so hard when Flan does that aside from the possibility that every single bat flying will drop down like flies after being hit by that.

You should feel shame, Remi

Oh there's more! And this is... different.

Wild Flandre used Boomburst! It's Super Effective!

So because Flan's ability is to destroy things, her sonar automatically vibrates at the resonance frequency of whatever she is targeting?

That's... actually pretty clever.