Paper Mario - "Really? A third Mario? Why not Geno/Daisy/Fawful/King Boo etc.?" Because it's my roster and I feel Paper Mario is more deserving than them. He's the main protagonist of the Paper Mario series (obviously) and boasts a lot of potential from his dash attack being his spin from the earlier Paper Mario games to using the Crystal Stars in his Final Smash. He boasts superior jumping abilities and is floatier as a result. This makes him easier to launch. He also uses a hammer for various attacks which have some decent strength and knockback to them.
Waluigi - He's been waiting long enough. Waluigi has a moveset completely made up for himself where he uses his whip from Strikers Charged and has the ability to grow thorn bushes to trap enemies and create great space for himself. He also uses Basketballs and Footballs to strike at his opponents from afar whilst primarily using a hockey stick or his long legs up close to create breathing room.
Dixie Kong - One of Nintendo's most important female characters and a main character in the DK series. Whilst she boasts similar attributes to Diddy she has many different capabilities such as utilising her hair for grabs and a tether recovery. She also boasts an electric guitar that can be used as a club. At worst she's a semi-clone. At best she's very unique.
Ridley - I really needn't explain how he'd play when there's a mod for Project M that encompasses this perfectly already.
Dark Samus - Main villain of the Prime trilogy. Despite being "Dark Samus" it'd actually fight very differently to Samus incorporating various Phazon abilities to deal damage over time and using techniques it used as an assist trophy.
Azura - One of the main characters of Fire Emblem Fates. People have been clamouring for an FE character that doesn't have a sword. Here she is. Alongside using a Lance she boasts aquatic abilities and as a Songstress/Dancer she's able to use these to have a graceful moveset as well as give her temporary buffs to help her out in a pinch. As her artwork shows her using a Blessed lance this let's her heal some small damage mid-match but she can only do so a limited amount of times before having to recharge.
Ganon - A different Ganon to the one in Ganondorf's Final Smash. Ganon is a brute character actively wielding a Trident which can be thrown. Much like the King of Disrespect he utilizes Dark Magic to enhance attacks and send out rings of fire to the opponents. Being one of the biggest and heaviest characters he boasts super armour on several attacks allowing him to tank hits and dish out even more pain.
Impa - Borrowing from her Hyrule Warriors appearance Impa makes use of a Naginata that boasts fire capabilities. She also makes use of various Shiekah techniques during battle to surprise her foes such as summoning more Blade's from the ground and manipulating fire itself.
Porky Minch - Again boasting a made up moveset Porky has an appearance not to dissimilar from Doctor Octopus where he has extra arms that allow for him to deal quick barrages of jabs. Being a fat child he is rather slow and heavy but compensates with his variety of gadgets from explosive robots that look like him to his Spider Mech that is used in his Final Smash.
Black Shadow - Being Captain Falcon's arch enemy Black Shadow has a very violent side to him which he reflects during his races and in his fighting style. He launches strikes of sheer brute force and the horns on his outfit aren't for show. He also boasts voodoo magic that he can use to manipulate enemies and the battlefield itself. His car, Black Bull, is used much like Captain Falcon's Blue Falcon in the Final Smash to violently slam into enemies.
Elma - the BLADE captain from Xenoblade X. Elma is the main protagonist of Xenoblade X (Cross is just a viewpoint from which the player experiences the story) and possesses a fighting style that follows a mix between Dual Blades and Dual Guns aswell as the unique skills Shadow Strike and Ghost Stage that her class, FullMetal
Alchemist Jaguar grants her. She can use her various arts in her moveset as well as her Skell for her Final Smash.
Wonder Red - The star of the Wonderful 101. Red's moveset would just be basic punches and kicks enhanced by fire. That is if he wasn't backed up by his team of Centinels including Blue, Green, Pink, Yellow, White and Black allowing for usage of Swords and Electricity, Guns, Whips, Hammers, Ice and Claws plus Time-slowing bombs respectively. Red's variety of attacks allows for great mix-ups in his attacks allowing for the element of surprise. Red can charge each of the Unite Morphs allowing for slower but stronger attacks. The final smash involves the Platinum Robo engaging the
Final attack used against the Final Boss (I ain't typing all that out but he would say that).
Chibi-Robo - A tiny robot sized up for battle. Chibi is a light fighter but he possess great potential in the right hands with his tools. He can use his Plug to grab enemies and tether onto ledges, a mug to shield himself and a blaster he can use to attack beyond the range of his plug. A chibi copter can be used much like the propeller suit in Mario to aid in recovery.
Takamaru - A samurai with skilled use of magic. Being a Samurai his usage of the sword will already be unique and his magic is unlike other swordfighters. His Katana can reflect projectiles and he can use explosive electric magic to deal heavy damage. He can use Shurikens and the more powerful fireballs to attack from a distance. He can also sneak around enemies with his invisibility cloak.
Black Mage - An icon of the Final Fantasy series, which is in turn iconic in it'sown right, and very efficient at Magic. They can attack using daggers up close allowing for them to hold their own but this isn't very strong. Due to their variety of magic they can catch foes off guard with different magic attacks and even Focus to strengthen their magic attacks. They're best kept a good distance from many foes.