Originally Posted by Flight Net
Have to fight the giant turtle thingy. ._.
Impossible, I've been using Vanille and spamming Death, but luck doesn't seem to be on my side, what did you guys do?
The babies - Adamanchelids - are easiest (I know, duh!) They are weak against ice, but if you debuff them, you can get them weak to everything. How I handle them is like this: Debuff them, Sazh and Vanille - Imperil, Deshell, Deprotect, Curse, and Slow. Fang is commando. After fully debuffed (sometimes with just Deshell, Deprotect and Imperil - Imperil is the important 'all elemental weakness' hit), change to 'Relentless Assault' and (for me, using Vanille), cast Blizzaga on the creature. Usually takes a few seconds to go down. No death spell.
Now, if you're talking about the adults - Adamantoise and Adamantotoise - it takes death. That doesn't guarantee anything though; you may have to retry. Usually, if you are new to chapter 12, if the creature gets back up on its legs, then I would just retry. I handle these creatures with Sazh and Vanille as debuffers first, and Fang as Commando. I use shrouds (Aegisol and Fortisol) to give buffs to the party, run in, and then start debuffing the legs (I'm after story, so I have enough health to do this, you may wish to go straight to the next part.) Once they are debuffed, I call upon (again, Vanille) Hecatoncheir. I debuff the oretoise with Imperil, Deprotect and Deshell. Sometimes Sazh would have successfully cast Curse on the creature. Then I go for the Death spell. Once Hecaton is ready for Gesalt mode, (when his bar has run out), I press square and go through the motions to get the animal as close to stagger as possible. I find the best to do this is pressing square over - I forget its name, but it's when he shoots the huge plasma fireballs at the creature. Get down to one, press triangle, go through the final, big burst attack, then your party comes back. Let Sazh cast slow and Curse, if not already there. Change to Relentless, where Sazh is now a Ravager, and Fang is still Commando. Vanille is the only Saboteur and able to use Death. Keep using Death until it works, or you are dead and/decide to retry.
Hope this helps. I got your last message that you finally had Death catch. For me, sometimes it works right away, other times I die three times before it catches. That's just the luck with Death, I guess.