Chongara's abilities are unique. He summons enemies of all genera at his will. Though his monsters may not seem as useful at first, his two monsters "Raigin" and "Fuugin" can be quite a deadly combination when used accordingly.

Though it takes some time to summon both Raigin and Fuugin, once they are out, place them around an enemy, preferably a strong one. But note that they must be in a VERITCAL FORMATION (example: Raigin over an enemy, Fuugin underneath the same enemy), in order for the attack to work:

Once they are in a vertical formation, a spell will now be accessible, which can inflict more than 1100 HP damage! Death is inevitable.