Three Sacred Treasures
When used, Pit equips the Wings of Pegasus and the Mirror Shield while saying "Equipped!" ("装着!", Equipping!) or "Bye now!" ("ピット行きます!", Here goes Pit!), then proceeds to equip the Arrow of Light before firing off a series of enchanted arrows that rack up damage. Pit calls out "Three Sacred Treasures!" ("三種の神器!", Three Sacred Treasures!) before attacking. The Final Smash ends with Pit covering the entirety of the arena with showers of large pillars of light, knocking opponents away and possibly KOing them. The attacks he can use during the Final Smash are as follows:
The majority of the Final Smash is used to fire off the first four types of barrages, and the final barrage is designed to KO opponents with its high knockback; because of its unpredictability, however, the final barrage can miss opponents even if they are standing still, especially since the beams of light do not last for long at all, and the other barrages do very little knockback, designed to rack up damage.
The player does not control Pit for the duration, and Pit automatically aims at enemies as he fires, but cannot turn around. As such, the vast majority of the attack can be avoided simply by standing behind him.
The Three Sacred Treasures are said to be the strongest weapons within Angel Land. When combined they are said to have the ability to destroy any foe the wearer faces. The Three Sacred Treasures, by name, are: the Arrow of Light, the Mirror Shield, and the Wings of Pegasus.
In Kid Icarus: Uprising, the Three Sacred Treasures are stolen by Space Pirates. Upon being reclaimed by Pit, he uses them to confront Medusa. In gameplay, the Arrows of Light are the only weapon capable of damaging and killing Ornes, the Mirror Shield passively blocks attacks from Pit's right side, and the Wings of Pegasus allow Pit to fly for longer than five minutes. Pit turns to the Treasures once more later on against Hades, but Hades destroys them, forcing Pit to seek a greater weapon from Dyntos, the god of the forge. Once these chapters are completed, the player has the option of replaying them without the Treasures active.
The last barrage of the Final Smash is reminiscent of the bow's special attack during flight stages in Kid Icarus: Uprising, wherein Pit or Dark Pit fires into the sky and rains beams of light to clear the screen of most enemies.
In Uprising, when Pit equips the Three Sacred Treasures, he shouts "Equipped!", which is one of his possible lines in Smash 4.