EDIT: Y'know what, now that I'm thinking about it, I'm gonna write some more to this. Because I can. And because I'm very bored.
Why has no one thought of this yet? YAHTZEE!
Yahtzee is a close-range specialist; the idea is that you pull people in, stun them, then sick your imps on them.
The main draw of playing as Yahtzee is experiencing his witticisms. Almost EVERY action is announced by some kind of witticism (one of several, in most cases), and some have character-specific witticisms.
Basic Special - Imp: Summons an imp ("Oy!"). 1 in 3 chance to summon an imp with a bow tie on it's head("Hey, You!"). 1 in 100 chance to summon an imp with a fire axe("Come Here!"). 1 in 500 chance to summon an imp with a cake on it's head("What are you wearing?"). One in a million chance to summon a member of the GLORIOUS PC MASTER RACE! ("ADRIAN!") All imps dissipate when hit with any attack. Maximum of four imps.
Forward Special - Sick: The imps go and attack in the direction Yahtzee points. Basic imps, Bow imps and Cake imps do 5% damage. Fire Axe imps do 10%. GLORIOUS PC MASTER RACE imp does 10% damage and heavy knockback. Can be aimed. Witticisms: "Who's that?" "Go over there!" "Get that guy!"
Up Special - Umbrella: Fires a grappling hook hidden in an umbrella (that he presumably borrowed from Tribly). Can be aimed. Does 7% damage. Grappling effect. Faster in the air. Witticism: "Watch out!" "Get over here!" "Save me, Umbrella!"
Down Special - Controller Snap: Yahtzee pulls out a controller and snaps it, stunning the opponent closer to him. 1 in 10 chance he will pull out a keyboard instead. Very small range. "Bollocks" "Pants-On-Head Retarded" "You should have bought Psychonauts"
FINAL SMASH - ZERO PUNCTUATION: Yahtzee sits down and reviews the match at hand. And he doesn't like it. He dislikes it so much that the mere mention of a fellow player's name causes them 3% damage. Use the directional pad to indicate who you're criticism; up is player 1, right is player 2, down is player 3, and left is player 4. Lasts for 15 seconds. Yahtzee is immune to his own criticism. Witticisms: "Time to get to business" "My favorite part!" "Why am I in a fighting game?"
Forward Smash Attack - I Don't Like You: Yahtzee unleashes one of two character-specific insults; a basic insult, and another for when his smash attack is at full power.