Ravager (Final Fantasy XIII-2)

Ravager is a role from Final Fantasy XIII-2. Its main function is to increase the foe's chain gauge.

AI Mechanics
Ravagers controlled by the computer select abilities designed to drive up enemies' chain gauges as high as possible, based on enemy data the player has discerned. If no elemental, physical or magical resistances have been discerned from the enemy, AI Ravagers will continue to use abilities of differing elemental properties until a weakness or resistance is found.

AI Ravagers try to avoid using the same ability twice in a row. For example, they will almost always queue up Fire, Flamestrike, Fire, Flamestrike if they know an enemy is weak against Fire, and has the same physical and magical resistance, because this drives up the chain gauge more than four Fires or four Flamestrikes.

In a normal paradigm, AI Ravagers will always target the same target as other characters. If there are two Commandos in the party, the party leader's target is given priority.

AI Ravagers will prefer to use first-tier spells and -strike abilities when faced with a single, unstaggered opponent. If an opponent is staggered, or if there are at least two opponents close together, AI Ravagers will also add one or two second-tier abilities in their attack queues. AI Ravagers will only use third-tier spells if there are many enemies close together.

Trivia

 * Only Fire, Blizzard, Thunder and Aero spells are available in Final Fantasy XIII-2, but Final Fantasy XIII had two additional elements that have since been removed: Water and Earth spells. Galestrike has been added in Final Fantasy XIII-2 as the new Wind-elemental strike attack.
 * While Ravagers are no longer able to cast Water, enemies of the Sahagin species are capable of casting Water. However as Water has been removed as an element in Final Fantasy XIII-2, this attack has been reclassified as a non-elemental spell.
 * The name of the item "Blaster's Sapphire", an item boosting the Ravager role bonus, may come from the Japanese name of the Ravager: Blaster.