Dancing Blade (Japanese: Marvelous Combination - マーベラスコンビネーション, Maberasukonbineshon) is Marth's Side Special Move in Super Smash Bros. Melee and Super Smash Bros. Brawl. It's a unique special move, as it consists of four different attacks chained together; a variety of combos can be performed depending on one's tilt on the joystick for each attack. This makes it one of exceptionally few attacks in the series which relies on this type of input - most attacks require only one direction. It is, however, common in other fighting games.
The options on the tilts lead to 18 possible combinations, as there is always the standard attack, followed by the second, third, and fourth attack. The second attack has two options and the third and fourth have three.
In Melee, the first attack is often used to gain horizontal recovery. Also, Marth glows a color as he uses his attacks. They are Blue for Up, Red for Neutral and Green for Down. It was quite unlikely that Marth would have to use all four attacks, since both the third and fourth strikes had much higher knockback than the first and second.
Dancing Blade has seen quite a few changes since Melee. First of all, the timing no longer matters, so it can be performed easily. If the first hit connects, it is nearly impossible to escape the rest of the combo when the timing is fast enough. The final can either be 2 kill moves at high percentages (up and forward) or a quick damage racker (down). The third hit is still a meteor smash, but only if not sweetspotted. However, the move aids Marth's recovery less than the previous game. The knockback on the third strike is decreased, allowing for better combos. Unlike Melee, where Marth would glow, the attacks simply change the motion trail of his sword.
Marth slashes over his head, then jabs down in front of him. He then strikes horizontally, and ends with a hard strike over his head.
Marth cuts upward, lunges forward, and strikes over his head.
Marth strikes with a hard blow, cuts, and ends with a series of quick jabs.