bitter shell
Idea is pretty simple. Either each clan would recive one jutsu that has a specific gimmick surrounding their backstory.
OR upon creating as said clan you would recive a very small bonus on specific stat, making each clan unique outside of them atm being cosmetic only.
vocal wigeon
some clan just get buff for shops , some get ordinary genjutsu/ninjutsu nothing special like tsukyomi or susannoo....
for example , one clan can not only tame but also summon beasts , so.. they can tame tiger but seal and summon wolf