Im with eternal on the drawbacks, was hoping you guys would come with some. Having 5 revives, can only revive one person (1 time) not 3 sorry.
Reviving a person would take 50% chakra.
You are revived at 10%,15%, 20% hp. // So if they can be KO easily by players who spot them again, if the medic don't heal them right after reviving
Revived players cant use Ultimate skills for 5 mins, Tsunami, 128- palms, Poison Fog etc.
Basically after being revived you should feel groggy in a sense, cause you just died and is limited to some functionality until it wears off you.