You know what seems to keep coming up as a question to me?
Exactly what classes is he trying to fight to request a Holy Light bolt...?
I mean, everything in RO works like a giant tree. Some branches are below, some are above.
Champions kill generally anything but have kind of hard times with Paladins and Assassin Crosses.
Assassin Crosses kill generally anything but have kind of hard times with Paladins, Champions, Gypsy/Clown (if played right), Sniper (if played right) and Lord Knights.
Creators have a hard time with many classes until their FCP dies if they've lived long enough.
Snipers have a hard time against Champions, Priests, Assassin Crosses, Clowns/Gypsy, Paladin, Creator or basically any class with Coma and high offensive damage or Pneuma.
Paladins have a hard time against Creators and Clowns/Gypsy (if played right).
High Priest have a hard time against Creator (If the High Priest runs out of FCP), Clown/Gypsy (Tarots), Paladin, Assassin Crosses, Champion (if they WPE or key macro)
See? If you were trying to kill a class full of offensive skills and stats build purely for PvP, I assure you that you wouldn't succeed.