there was a warlock spell a long time ago i dont remember which expansion that if you pulled like 30 mobs at once with your pets or whatever you could take health from all 30 mobs at once from your warlock does anybody remember this spell ?
Harvest Life. Yes.
ty i miss that spell a lot 
i wish blizzard would bring back that spell and what it did back then
There’s a covenant ability in Shadowlands that is basically harvest life.
It’s pretty meh though.
Warlock in general is very meh at the moment.
really cool i dont got the alpha yet for shadowlands its just that was one of my favorite spells for my lock 