Talk to 2 persons on Industrial City Dilmagia
The 1st person is on the shopping district. After talking to with the 1st person, keep going north, and talk to the woman with her child. You can go to Wicked Peak now.
It can attack 2 or 3 three times a row
 Death: 30% chance to K.O your characters.
 Darkness Messenger
 If you have Celes bring her. Sealing blade can cancel graviga and death.
 Curaja to recover from graviga
 Remember that Graviga can’t kill your characters, but be wary of his darkness messenger attack
 Bring char with Raise spell/ Phoenix down
Remember that the esper only gives you 1% of their status, by knowing this never prioritize “status” on the training, always prioritize skills! You don’t have enough SP to collect all the nodes on the training, but you can get all the skills!!
I mark the important skills by give them Green color.
|1 star||Gravity, Deshell, Silence, Drain, Biora, Sleep|
|2 star||Imperil, Reduce Encounter, Darkside, Man-Eater, Demon Killer, Deprotect, Mug, Osmose|
Diablos learn some “killer” abilities, but his primary attribute boost is for Magic and MP, because of this you may want to equip it on your physical character when fighting a boss or something strong. On normal occassion, it’s good to pair him with Mage (not a healer, because of low Spirit).
|1 star (Lvl 30)||2800||4300||1200||1700||3700||2300|
|2 star (Lvl 40)||4300||6000||1500||2300||5300||3100|
Diablos will reduce your Light resistance (50%), but since there are not many enemies that use light element attack, it’s very good :).