The purpose of learning lightening magic is because shockwave is useful

Skills: Max out Heal, Cure. (Heal: self-heal level 5 + wisdom 137 will give you 300hp lostsaga gold heal without delay!) Do not learn Lightening Mastery as it doesn't really do anything.

The purpose of learning lightening magic is because shockwave is useful for healers when they have to solo or have to kill monsters quickly. It is recommended that you learn this shock wave.

Lightening blow can also be helpful when you have to help warriors killing monsters. (Healing should be the main thing that you should do. Helping warriors by attacking monster is not usually recommended so be cautious when you decide to help warriors.)

Meditation should be mastered. Speed up and Resurrection should be mastered. Later you should learn cure2; and max them out.

Armor: 32 armor - They are good for any mages but it should be eventually replaced with either 42 or 46 armor. You should have at least 32 armor if you want to kill monsters higher than Water Dragon.

42 armor: Plain 42 armor is somewhat common but having 42 armor with stat option is much better. It is recommended that you have 42 armor with 2 or 3 int on it since healers are low on Int.