Jutsu

Abilities in Naruto are called jutsus.

Learning jutsus
There is multiple ideas of how the player could learn new jutsus and it would be best to include all of them to get some variety.

By start
There will be a couple jutsus the character either starts out with, or learns during the tutorial.

Through quests
Espacially clan-only jutsus could be learned by quests given by NPCs near the clan's residence. Quest-chains that reward with a jutsu should be longer that usual.

Through encounter
Defeating a strong creature could be rewarded with a jutsu. This should only be the case with high-end encounters or rare spawns though.

Through discovery
Exploration should be rewarded, maybe there shouldn't just be a scroll that teaches you a jutsu lying around, but there could be fragments that you collect and hand in to get one jutsu after some time.

Ninjutsu
Basically all jutsu that don't fit into a specific category are ninjutsu. They are often based on an element.

Genjutsu
Those are used by tricking the oponents mind by creating illusions and madness.

Taijutsu
All melee abilities are Taijutsu

Medical Jutsu
Abilities that heal or buff the target.

Implementation
None

Forum Links
Collecting jutsus:http://forums.naruto-abunai.com/viewtopic.php?f=24&t=3469