25Orphan - Final Fantasy XIII
Orphan is Final Fantasy XIII's final boss, and the party encounters the beast just as doom is about to befall Cocoon. The fal'Cie hoped to use Orphan in order to summon The Maker, who, as the name implies, creates worlds.
The battle itself can be a tough one if the player
is unaware of the boss's very simple weakness. As it turns out, Orphan is vulnerable to Poison, and will be made more manageable if the spell is cast upon it. Because of its Achilles heel, this boss takes a low spot.