In battle, Raiakara seeks to use Aqua Reverb as much as possible, leading to an all out offensive with no thought to his own survival. If his power is disrupted, or someone simply leaves him badly injured without triggering Ignis Incende, he will use Luminatio Crescendo to recover. Other than that, he has no real strategy, relying on his abilities to protect him. He is extremely arrogant and overconfident, and will try to prove himself the strongest at all possible opportunities.
However, he is not as invincible as he believes. Despite his perfect resistance to damage, he has lost several times, much to his annoyance. The first loss came when someone slit his stomach open after Aegis had been expended, and stuck a suppressing amulet within him, gagging him, then killing him to trigger the resurrection. He still could not be killed, but he was imprisoned for about a year before he was rescued. The second loss came when the power of the elements was completely disrupted by a master level elementalist who used his powers to remove the power of all elemental spirits in the area. The elementalist simply lectured him and let him go however. His final loss came when his own attack was captured, and turned against him. The power of Umbral Erasure prevented his resurrection, killing him finally. Of course, we will be taking him before his death in this instance >_>.
--
http://desmond.imageshack.us/Himg26/scaled.php?server=26&filename=jeffreyraze.png&res=medium