Dang this forum is dead. I'm heavily considering playing this character. Anything I should know? Between his buffs and HaKii inspiring me, I'm feeling like he's a solid character.
We're all saving up our energy for 20.4.2016.
Lucas is a solid character, and quite underrepresented competitively in my opinion. But you need to be more considerate with your playstyle than with other characters to be the most effective with him. His moveset allows for high octane aggression, but they are also more often than not punishable if not executed correctly or appropriately, as many of his aerials don't have the luxury of autocancelling. He can kill well, but not well enough, as most KO options are a bit on the slow side (grabs, smashes), though a nice safe spike is good.
You should anticipate having to learn to slow play the neutral with side-b and z-air spacing in order to get in, and then learn how to specifically follow up hits or grabs (with an emphasis on d-throw) you do manage to land afterwards, as for a character as floaty as Lucas, he has a pretty tantalizing combo game if you know exactly what your hitboxes are doing. Expect him to have trouble with fast punishing characters like Sheik, Fox, Sonic, or Greninja, but do well against heavyweights and big bodies, and go relatively even against everyone else. Spend some time learning his up-b recovery angles and (ridiculous) range, and familiarize yourself with using a z-air. Learn the range and speed of the tether grab, and don't be tempted to spam it. D-tilt follow ups are important too. There's all sorts of thread lying around here to help you with them if you need. Welcome to the Lucas family, and hopefully you last longer than certain other members ;D.