Ragnarok Online/Jobs/Sage

Stat Builds
There are a few builds for the sage.
 * 1) Magic
 * 2) Battle
 * 3) Vitality Battle

The Magic Build is great in PvP against melee characters. You want to max out dex and int, and then spend the rest on agi or vit, your choice. When using the Magic Build you must have level 10 Free Cast or else you will be a sitting duck for a knight that knows charge.
 * Magic Build

This build allows a sage to attack and cast magic simultaneously. You want to have strength, intelligence, agility and dex.
 * Battle Build

Active Skills
Bolts are definitely necessary for killing. Sages can come in many builds. Some try to obtain 185 aspd+ with Dagger [4] and 4 Cecil cards. Nonetheless, a link is required. With proper stats, Hindsight can definitely kill.

Casting type however requires more cards and is more complex. Dex is definitely needed, Blessing, Dex+ foods, and Imp/Siroma cards.

Passive Skills
Free Cast level 10 is a must. It is essential for the role of playing battle professor and support professor. Nonetheless, it's one of your best passive skills.

Dragonology level 4 should be necessary, in order to obtain Spider Web. However, one should consider leveling to level 5 when training in the Abyss Dungeons. The +3 int is also a nice bonus.