Dusknoir is the Ghost-Type Gripper Pokemon, most notable for his role in Pokemon Mystery Dungeon: Explorers of Time/Darkness/Sky, where he was the main antagonist in the pre-credits storyline.
Dusknoir is a primarily black Pokémon somewhat resembling a cyclops. Its cylindrical head is light gray with a single eye that has a yellow iris and a red pupil. There is a yellow band near the top of its head, and a short, yellow antenna with a disc-shaped tip extends from on top. Six flat projections extend from the base of its neck and surround its head, resembling an upturned collar. Dusknoir has well-developed arms with two yellow bands near its wrists and large, gray hands. On the front of its torso are two almond-shaped marking, and on its back are two circular markings. Both sets of markings resemble eyes. A yellow band encircles its body, zigzagging along the front and forming a long curve around the back. It has a wispy tail in place of feet.
The antenna on Dusknoir's head allows it to receive transmissions from the spirit world, which tell it to bring people there. However, the anime has also shown it protecting people from being taken to the spirit world. The band on its body can open, similar to a mouth. It uses this ability to take spirits into its body and carry them home or as it travels to unknown places.
How he would appear in game: simple, just use the sprites from Mystery Dungeon.
Idle: Sprites 7,8,9 on sheet.
Taunt: Sprites 93, 94, 95
Damage Animation: Sprites 67 and 71
Victory Animation: Same as Taunt
Losing Animation: Final 2 Sprites on sheet
Shield Animation: Sprite 25
Dizzy: (First 8 Sprites after black circles)
Number of Jumps: 10
Jump Animation: Same as Idle
Grab: Carry Sprite 97 into a grab.
Basic (Jab, Combo): Shadow Punch (Sprites 37, 40, 43)
Dash: Shoulder (Sprite 38)
F Tilt: Ice Punch (Sprites 8 and 9)
D Tilt: Earthquake (Sprite 98)
U Tilt: Sprite 96
F Smash: Focus Punch (Last 10 sprites before the final 2)
U Smash: Sprite 96
D Smash: Sprite 98
N Air: Sprite 100
U Air: Sprite 46
F Air: Sprite 40
D Air: Sprite 99
N Special: Shadow Ball (Sprite 27 Shooting a chargeable ball from spritelist)
S Special: Shadow Sneak (Nothing like Greninja in Smash 4, Sprite 27 with a shadowy blob moving forward and attacking enemies)
D Special: Pursuit (A counter move with the animation of Sprite 26)
U Special: Gravity: Sprite 26 is used, and it brings all airborn enemies to the ground)
Final Smash: Into the Future of Darkness: Dusknoir summons a Demensional Hole (Black Wormhole) and sucks in nearby fighters, taking them to the future. While there, the fighters are ambushed by Sableye, finally finishing with a Roar of Time from Primal Dialga.