Yoshi's dair is nicknamed the Flutter Kick. Yoshi swings his feet back and forth many times. It can meteor smash, but is rather weak. It has some combo potential. If all hits connect, it can do an extreme 56%. It the most damaging move in the game, and the most damaging aerial attack in the series. It also has quick startup, making it rather useful racking up over 100% damage very quickly, because because of the move's fast startup and extreme damage. It can combo with some moves such his up tilt or foward air.
It is very useful for shield break combos due to about 10 hits.