Ike’s up special move, obviously, is "Aether." And it is ethereal. Oh, yes.
<Up Special Move: Aether>
First he throws the sword!
Then he leaps after it and catches it in midair!
Then he swiftly plunges, slicing the air!
Of special importance is the fact that he is resistant to attacks for a moment right after throwing his sword.
He’s not flinching?!
He’s not really invincible—he still takes damage. But he won’t flinch in the slightest.
This time, there are several moves like this among the heavy characters, so watch out!
Oh, he also has this special move...
<Standard Special Move: Eruption>
His standard special move is called Eruption!
You can even charge this one up.