You can collect Bloods of Sargeras while leveling alts.


Bloods are farmable while leveling alts from 100 by enchanting an heirloom shoulder with Boon of the Bloodhunter while on your main character (with revered The Wardens), then mailing it to your alt to level wearing. You sacrifice one slot of level appropriate gear for 40-50+ bloods.EDIT: I believe the other Legion shoulder enchants would work too, but i haven't specifically tested anything except the blood enchant.