Cerberus
Location: Defeat Cerberus in the center of the Main Hall during the Attack on Galbadia Garden (or draw from Gargantua in Ultimecia's Castle if you missed it)
Element: none
Summon: Counter Rockets - casts Double and Triple on all allies
Ability AP Prerequisite   Ability AP Prerequisite
Str-J - (initially learned) GF - (initially learned)
Mag-J 50 Draw - (initially learned)
Spr-J 50 Item - (initially learned)
Spd-J 120 Spd+20% 150 Spd-J
Hit-J 120 Spd+40% 200 Spd+20%
ST-Atk-J 160 Mag-J Auto-Haste 250 Spd+40%
ST-Def-J 100 Spr-J Expendx2-1 250
ST-Def-Jx2 130 ST-Def-J Alert 200
ST-Def-Jx4 180 ST-Def-Jx2 GFHP+10% 70
Abilityx3 - (initially learned) GFHP+20% 140 GFHP+10%
Magic - (initially learned) GFHP+30% 200 GFHP+20%
Notes: ST-Def-Jx4 is essential for defeating Malboros. Using the summon during long fights will give you both the capability to do more damage and to heal multiple allies at a time.