resurrection

So I don't know where to start with this trigger. I do have resurrect one ally hero ability though which is this one. Hero Revive 1 Events Unit - A unit Starts the effect of an ability Conditions (Ability being cast) Equal to Death Negater (Revive Ability) Actions...

I need a spell that, after X seconds delay, brings nearby bring a unit that just died in a radius back to life with X% health. It needs to have a cooldown as well. I just need 1 level of this spell.