why blood fiend
blood fiend is ok if you’re MM, otherwise stick to consume conditions
blood fiend heals 2k less than the tool tip states and is the only heal in the entire game that can actually die. It’s not worth the risk well of blood and consume are both better choices for different circumstances.
Blood fiend is a pretty terrible choice, even for a MM. If you keep it out full-time, there’s a good chance it will die and be on cooldown when you truly need the big heal, and the passive healing is mediocre at best (and that’s being generous). If you decide to not have him summoned until you need the healing, then half the utility of the skill is wasted.
I took well of blood for PvE and haven’t looked back; it’s solid healing for yourself, plus support healing for your pets and other players.