FFTactics Class Breakdown: Agrias

Stasis Sword-Damages with holy sword spirit. Adds: Stop

Split Punch- Damages with holy sword spirit. Adds: Death Sentence

Crush Punch-Damages with holy sword spirit. Adds: Dead

Lightning Stab-Damages with holy sword spirit. Adds: Silence

Holy Explosion- Damages with holy sword spirit. Adds: Confusion

The Holy Knight is a very useful job class once you get the longer range abilities: Lightning
Stab and Holy Explosion. With a good sword, you can do a lot of damage with these strikes.
The variety of status anomalies associated with these attacks occur very infrequently. Keep in mind that all but Lightning Stab are holy elemental, so they are more effective against undead, and can heal your characters that are equipped with Chameleon Robes or Excaliburs.