About killing with lucas:
Killing with lucas is not that hard. My strategy with killing characters is wait till they are over 100%. Once they are over that presentage ten lure them towards the edge and side smash away like is no tomorrow...or any smashes. NEVER EVER side smash crazy, it will weaken it, honestly, I did a lucas ditto and I let my opponent side smash me...why? because I DI when I got side smashed when I was on 210%. How to get high presentage? using Sidetilt because is your best friend as well as other special.
Weakening Smashes:
Sometimes I let my opponent side smash me because it will weaken it while mine are still fresh, however, I won't recommend it against high tiers. I know you guys are telling me. "Dude, are you serious?" Yes I am, I am learning when Smashes get weak and how many smashes does it take to get weaker.
Grabing with Lucas:
As for grabbing, yea, down throw kills when the opponent is around 130% - 150%. But always do the dthrow -uptilt combo, but I usually mix it with a down throw to up air. Now, I am sure you herd this trick somewhere on the lucas board about release grab Snake, Marth, Peach, down tilt, witch make them trip then side smash. This only work around 80 and up...but this is just a Luck technique than anything, I also won't recommend using it every time because it can be predictable. I can't remember the name of the threat where I found this info because there vids and the likes. So credit goes to who made the technique possible.
C-stick/B-stick.
I suck with B-stick so I am more of a C-stick user than a B-stick user. However, Someone told me that changing back and froward would depend from characters. Example, using B-stick work great against King D. while C.stick would work against others? *Shrugs* I am learning how to b-stick as of late...and will probably check witch character works with and the likes. But I think B-stick works wonders that C-stick can't do.
Location location location....
I been doing a bit of research on smashing at the right spot, where side smash will kill someone under 100% on the ledge than in the middle. The idea is to somehow mind game them to that location. HOWEVER! I always remember about my opponent DI so that will affect this theory as well. Just keep in mind that Up-smashing will kill pretty much anywhere
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death/chain/release grab by opponent:
Most people are scared of characters like Marth, Peach, D3, MK and such. And for one, I like a good challenge. All you have to do is space and probably jump back and froward in an arc-like patter with pk fire bombardment (although, this techinuqe work best against D3 and Snake, not sure if it works with other because some characters are quick). However, this doesn't always work. I'll would go even further in details but I am still trying to figure out what other strategies against this. Other than that...DON'T GET GRABBED D:!!!! Mind games mind games and more mindgames ;p. Just don't be scared of the match up and you'll be fine
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PSI magnet:
What can I say about this? God I love this and I probably can't recommend it. However, I sometimes like to go pro by going off the stage and hit them with the PSI magnet. Or just watch a mario run to it X3. Again, still learning on when to use this and so fort. Also, don't forget about the wave bounce and magnet pull.
Other than that, I am not sure what else to say...will probaly make a Hard thought guide sometimes this year...jsut not now.
-lates
PS: hope this make sense to you guys >_>; cuz I suck at explaining at times....