Raktavija

Raktavija are a boss feature in Final Fantasy XIII. There is 3 in the game in total, both part of missions, the first can be found at Titan's Trail, Mission 51, which is section E3 of the Titan Trial Grid. The other 2 are encountered at the same time, during Mission 62, and can only be fought by using a chocobo to get to there location on the Central Expanse of the Archylte Steppe.

Battle
Due to Raktavija only having magic based attacks, having the Ultimate Magic synthesized ability, which nullifies all magic abilities, makes these battles extremely easy, however, it may be costly to obtain the items required for it, using other Magic Resistance improving accessories helps a great deal.