Lucas is going to he a big problem against huge heavyweights aside from Ganondorf as D-Throw > N-Air (Repeat) can be a zero-to-death combo on them. D-Throw > U-Smash is very, very effective on all characters at lower damages. He's also got a superb edge-guarding game with two meteors, a multi-hitting down smash and options to cover against the opponents. I also found PK Freeze to be a very valuable asset to Lucas, especially his edge-guarding game, where opponents will likely try to air dodge the attack. Opponents like Little Mac and Ryu will either be hit or suffer from their poor vertical recoveries.
With combos, I can find a few throw combos already:
D-Throw > N-Air/U-Smash/F-Air/U-Air
U-Throw > U-Smash/F-Air
F-Throw > F-Air/N-Air
B-Throw > F-Air/N-Air/B-Air
Now, for those who are confused, the slash means you can perform one attack or the other.
Lucas' D-Tilt happens to be a very great one for setting up to his jab combo or F-Tilt, and even his very quick F-Smash. Characters who are blocked by Lucas' shield will definitely get punished if they pull out a slower attack or miss a grab, because F-Smash is just that good. With U-Smash, Lucas can just cover against any character who decides to recover vertically thanks to the two hitboxes he has with U-Smash that link up to one another. It's a very devastating move to say the least, and if you manage to use PK Freeze to follow up into U-Smash, it could result in a KO.
PK Fire is a great spacing tool for Lucas, too. Deals out a good amount of damage and knockback and can lead up into other attacks very well. PSI Magnet is also better than Ness' by a long shot due to its extra range and ability to actually hurt the opponent. But PK Thunder needs to be treated with caution; you cannot pull it out like Ness's, you need to pull it out like you were Lucas. However, it's got a great edge-guarding capability and if you time it right off the edge of the stage, you could actually end up KO'ing an opponent who wanted an impromptu Meteor Smash. It's also very amazing due to having the ability to move around after the recovery reaches its peak, something some characters need (cough, Toon Link, cough).
Overall, my opinion is that Lucas will be a high tier at lowest, and upper high at lowest, possibly around the top 7 to 20.
Okay, this guy, this guy has just been buffed in a good way this time. For those who have been doubting Link, doubt no more as he is fully capable of an actual good grab game now, especially with D-Throw > U-Smash/U-Tilt. No matter the DI, D-Throw > U-Smash/U-Tilt at low damages will still link up together, as I've noticed when fighting opponents. This means Link technically has two U-Throws now (since D-Throw acts like U-Throw); one for combos and one for killing the opponent. If that wasn't enough, Link's grab, as we all know, has been extended for twice the range and to the end until it droops down. This means he can truly and effectively grab opponents in the air and at distances, making footsies an even more unsafe thing against him. If you try to approach him now, it's going to be extremely hard due to the chances of either being grabbed or being hit with another attack.
Talking more about his throws before his grab v. Super Armor attacks, Link's D-Throw can also link into N-Air, U-Air and F-Air at more moderate and higher damages. Thanks to D-Throw being able to throw opponents forward now, these attacks are very effective after coming out. U-Throw is also a good move to Link up into U-Air, and can be a somewhat devastating at higher damages due to Link's hugely disjointed hitbox on U-Air.
Attacks that use Super Armor beware, this is your worst nightmare now. You can't simply rush up at Link anymore with a Super Armor attack, he can and will grab you out of it and if the right Link is used, he can combo you to Kingdom Come. Attacks like Flare Blitz, Mac's Smashes and Jet Hammer won't be of any use if Link uses his grab. They will actually be practically useless now against him unless he misses the grab. A better option would to be to find some space and actually try finding a way around Link's grab. But remember, his grab is still quick, so you better time it all right.
Also, I feel like B-Throw > D-Air should see a lot more usage in the future in terms of Link's edge throwing. This is because B-Throw has a trajectory that could help link up into D-Air, which I honestly believe has improved reach once more.
With the grab buff, Link doesn't seem like a low tier, but rather an upper middle or a lower high tier character, around the top 20-24. His grab is something that helps him out in a lot of match ups now, especially with opponents who he formerly had half the grab range to. And with hopefully more buffs to come from him, I look forward to playing as him a lot more.