Sorry, things like this have probably been asked a million times, but I’m utterly confused with the actual proc mechanics of this skill with linked devotions and the “autoattack” procs like reaping strike. I hope someone can quickly help me out.
Suppose for the sake of simple numbers that I have
 Bone Harvest, 3 sec cooldown, with Harvester of Death.
 An attack rate of 3 per second
So far so good, that means that out of three attacks, one should be Bone Harvest, the other two default attacks.
Now suppose I have:
 Wendigo’s Mark, 15% chance, linked to Bone Harvest
 Reaping Strike, 15% chance, procs from default attacks
 Will of Rattosh, 15% chance, linked to Reaping strike.
Questions:

does Wendigo’s mark only proc from the actual Bone Harvest attack, i.e. one attack in twenty, or can it also proc from the intermediate default attacks, i.e. really 15% of all attacks I do?

does Will of Rattosh only have a chance to proc if Reaping Strike procs, i.e. 0.15 * 0.15 = 2% chance to be used on default attacks? This would mean linking something to Reaping Strike is pretty much useless. Or is the Will of Rattosh proc transfered “upwards”, so that it also has 15% chance to proc on every default attack?
Sorry for asking if this info can be found elsewhere, you may forward me to where it is explained, I could not find it.