In our world we have eternal spirits of Hagoromo's sons.
You can meet them in character of a Boss, whoever kill him with last hit will inherit this Spirit.
Spirit user(A) have some special abilities and unique jutsu for a 6 hours.
If other player(B) will kill Spirit user(A), Spirit will choose him as Vessel
and will be inherited with time his previous user had left minus - 1 hour.
Boss will respawn somewhere on main continent some time after each Spirit vanish from users.
INDRA SPIRIT
+10% melee damage
-jutsu "Hansha no Jutsu" - reflect 20% of any incoming dmg, duration 5s
-speed up is boosted extra 10%
-Limbo travel - travel to Konoha (1x/15mins)
ASHURA SPIRIT
+10% jutsu damage
-jutsu "Kanchi no Jutsu" - 30% chance to dodge attacks, duration 5s
-speed up is boosted extra 10%
-jutsu "Kanchi Sense" - advanced sense jutsu