Critical Hit
Marth's Final Smash in SSBB is amongst one of the most powerful in the game. The animation is that of a Lord's Critical from the Sprite based Fire Emblem games. It does 60%. However this doesn't matter, it automatically KO'd a trio of Bowsers if they were at zero before the attack. The attack comes with a 60 HP Fire Emblem gauge which is quickly dropped to zero. Strangely, the Fire Emblem games that feature Marth have a maximum HP amount of 52.
Until the attack animation completely ends, the entire sword carries the effect, power, and knockback. Meaning that if the attack connects, the attack will also hit anyone directly behind Marth at that point of the sword swing as well, dodge rolling around Marth is not recommended. On the ground the attack will follow to the edge of the platform, at this time it is unknown if the attack continues forward off the main platform if you are airborn. You WILL die if you use this on a walk off stage and miss.
