This move has multiple functions upon use. When Luma is paired up with Rosalina, the move becomes a chargeable move that shoots Luma out varying distances. The distance and speed that Luma travels out depends on how much the move is charged. Any opponent that Luma comes in contact with is damaged and knocked back. The amount of damage inflicted varies depending on how far Luma has traveled and how long the move has been charged, and at full charge, Luma is invincible while travelling. When Luma hits someone, it will stop traveling. If Luma is stunned while charging, Rosalina will continue to charge so long as the button is held, but releasing it will do nothing.
When Luma is away from Rosalina, Rosalina will wave her wand in the air in front of her. This will call Luma back to Rosalina, and then the move will cycle back to being a chargeable shot. If no Luma is in play, Rosalina will wave her wand to no effect.
It should also be noted that Luma operates like a projectile upon being shot. As a result, moves such as Reflector, Nayru's Love, and Guardian Orbitars can reflect Luma right back at Rosalina, damaging her as a result. However, Luma is unaffected by PSI Magnet, Gravitational Pull, and Absorbing Vortex. It also can't be Pocketed.
Kirby can use Luma Shot via copying Rosalina, which spawns a Luma that immediately disappears after it is projected away. This allows Kirby to use it whenever he wants to, unlike Rosalina. Also, Kirby's Luma can't be attacked nor block projectiles.
Luma Shot has five different stages of damage and travel distance based on how much the move is charged. Each stage travels one character length more than the last stage. The initial stage travels half of the length of Final Destination, while a fully charged Luma Shot will shoot Luma 3/4 of the full length of Final Destination.
Special Move customization was added in Super Smash Bros. 4. These are the variations:
Near the beginning of Super Mario Galaxy , Rosalina uses her wand to summon a Luma for Player 1 to use. The summoning aspect of Luma Shot is a reference to this cutscene. In the sequel, a second player can control an additional Luma. The second Luma can both stun and defeat enemies from a short distance.