Little Mac (SSBU)/Down aerial
Little Mac throws a weak palm thrust downwards. Like all of little macs aerials, it's inept in almost every typical offensive use for a down air. While it has a meteor smash hitbox, the hitbox is pitifully weak and acts as a sour-spot, with the meteor spike almost never landing KO's unless the opponent is footstooled immediately after or has a poor recovery. It can lock floor opponents in niche situations however.
Despite this, the move has a solid place in Mac's kit due to it being able to help little mac's recovery, if down air is interrupted with Rising Uppercut, Little Mac gains slightly more horizontal distance, giving Mac a tiny boost to his horizontal recovery. This is reasonably easy to do, as the moves interruptible window is fairly long. However, this only applies if Little Mac is facing towards the ledge. While the distance Little Mac gains may seem negligible and pointless, Little Mac has a notoriously bad recovery, and even just a little distance can be the difference between recovering and failing to do so. Despite the move being niche and ineffective as an actual attack, this move is crucial to makes recovery, giving it a solid place in Mac's arsenal.