Final Fantasy XIII Long Gui help!

[Btab]

So I've looked everywhere to find help with this guy to get the trophy. But I can't beat him. How can I beat him with maxed Crystarium, but not maxed weapons (I have no Traps)? Every strategy I've tried seems not to work because my characters aren't doing as much damage as the guides say they should. I'm so confused!

Help and thanks!

[Correction]

Search works.

[Kamil]

Summon Hecaton. Poison with Vanille, overwrite with another Poison. Go into Gestalt wait until he auto leaves by using the move that costs 1 bar.
After Heca leaves use Death, switch to COM/COM/COM and you're done.

[Raen Ryong]

KEEP MAIN LONG GUI BODY SLOWED.

Okay, now that is out of the way;

Using Fang/Hope/Vanille which I feel is the safest setup for beating these,

you want a SEN/SEN/SEN setup to eat Ultima and Roar, also normal hits if you feel like it. I'd use MED MED SAB so you can debuff while healing (only Van/Hope's MEDs are worth a damn anyway). You want to fully debuff one leg at a time and then destroy it. Before the last one falls make sure you are fully buffed. Use RAVs to build chain while you debuff it and then absolutely lay into it. Use Highwind before it stands up if using Fang as leader. Switch to SEN SEN SEN as it stands as it will Roar. Simply repeat. If not dead after 2 staggers, summon immediately and hopefully kill it by the third.

Long Guis are easy, just strong.

[Teron]

I used Fang, Lightning and Vanille.

SEN/SEN/SEN
COM/COM/MED
COM/COM/RAV
RAV/RAV/RAV
SAB/SYN/MED
MED/MED/MED

I used the same strategy as Raen Ryong.

[yzn]

try to find something on youtube. you can find some nice tutorial videos there

[Chio]

It's a Japanese version of the game but same strategy. Read the description that should help.

http://www.youtube.com/watch?v=wXIc9ICncpo