Eddy is a scrub, if the competition its really that low, while you slide from X to O repeately, he can do a snake edge( a launching sweep) into a series of lows or mids dependig of how you slide and if you hold back or forward in the D-Pad he might actually confuse ppl more, if the snake edge launches the followup its a screw hit in T7.
If you pick Eddy there is a bunch of moves you can learn in a hour or so and may be so dificult for ppl with longer experience in game to defend against, like his b14 which was recently nerfed but still can make you annoying as a little prick if the competition is that low.
But if i think i have the right character for you, pick Claudio Serafino, he is a T7 startlet, no one knows his moves his 10 hit combos and how he plays, his game plan its the simplest for any new comer from a 2D game as well.
Claudio has a set of lows that aren't really that safe or good at all, but in Tekken ppl hardly block low due launching mids, so you harass ppl with d3 and his other lows, and when they start to duck in range, you do uf4 instead which is the best hop kick in the game with a huge range high profiles lows, avoid throws like any hop kick, and is very hard to punish since its -13 on block, punishes in tekken start with 10f and are jabs.
He is has a mechanic similar to Devil Trigger from DMC, if you land certain moves he activates a sort of buff and his lows become better, he gets a new launcher that is safe, and can become even more stupid, he also has a very good damage output.
I dunno what his key moves are aside from his hop kick, and his running 2 and uf3 which is a screw if the command is correct.
But you should check Claudio, his moveset its shorter than any legacy character as well and you can focus on learning things like what lows you should use to poke and what moves you should use as fillers once you do a hop kick.
Definitely one of the chars i will be picking up when the game drops, he is stupid as fuck, check some of his matches:
The fuck is this 
Yeah its been a while since i played Tekken. Good to know.
2 or 
4. Nothing feels more depressing than getting hit by 2-3 consecutive quick lows so you block low in anticipation, and get launched lol. Scrub killer tactics.
