Skyward Sword LinkHey, don't judge me. I'm still on E3 excitement, so I figure why the skyward [tornado fang] not? Haha, this will most likely be updated once we find out more, but here's a rough idea based on the weapons that we saw.
Standard B: Sword BeamLink can hold his sword high, charging up the blade. When fully charged, it releases powerful sword beam slashes at opponents.
Up B: BombsYes, this time Link takes Bombs out by holding Up B, and he can either toss them upward or bowl them at you.
Down B: Shield BashShield Bash will stun opponents, as they've just been hit with a Hylian Shield to the face. Also will knock back items and other things thrown directly at it.
Forward B: WhipScuse' Link while he whips out his whip. Along with standard damage, the whip has the ability to grab items from afar, as well as from out of opponents hands. This is also Link's primary move to get back to the stage.
Final Smash: Meet The BeetleAla Snkes Final Smash, Link will jump off screen and he will have a full 15 seconds of fun with the Beetle. He will be able to control the Beetle and grab opponents and essentially take them off the level into oblivion. Once the Beetle dies, it appears right back on Link's arm again.