What about Wolf Link? He could do his spin attack, he could bite, he could "grab" using Midna, he could head-butt, his howl could temporarily stun others if nearby...not sure what his smash would be...maybe he could howl the song to summon the falcon, but several appear.
In the mention of Freddy maybe his movement could be like Mario's
Jump, punch, kick, throwing
His smash should be this;
Upon getting the smash ball as Freddy, the screen turns black causing the other characters to stop and look around confused, suddenly the song plays that always plays upon reaching the end of the power/fifth hour, and inevitably Freddy jumps at the screen. Successfully defeating one or two characters.
But it can also change depending on how much damage he has at the moment the high the damage (you like 99% or if you manage to get in the high 100's and not die) the screen will go black causing Freddy to sit down and glow yellow becoming Golden Freddy, with the shrieks and flashing images of his animatronic friends flashing on the screen leading to the screen to go completely black with the message 'ITS ME' on it. In the process of dishing out strong hits to whomever is near.
Also...I would love to see a Creepypasta DLC maybe Slendy or *cough*Jeff the killer*cough*
Slender could fight with his tentacles, he'd wrap them around the other and squeeze them or throw them, and he could teleport and his smash could be his static haze.
Jeff's movement could be punching, kicking, throwing his knife (like throwing bombs or Pikmin) and maybe a spin knife attack?
His Smash would be like Snake's chokehold and he would whisper "Go to Sleep"