Need details on Rune of the Mad King

Can anyone give me more information about Rune of the Mad King?I mean the effect: Summon ravens to attack nearby enemies when you activate an elite skill.

I'm interested in trying this rune on my Reaper, who is focused on life steal..How much damage can I expect from this rune effect?Will it trigger life steal for each raven hit?Can this expect to gain lots of healing from Vampiric and Vampiric Presence?

Based on https://wiki.guildwars2.com/wiki/Superior_Rune_of_the_Mad_King"The 6th bonus raven summoning is identical to Hunter's Call, but it doesn't require targeting and will summon hawks on 3 targets within 900 range."

Hunter's Call (https://wiki.guildwars2.com/wiki/Hunter's_Call)Damage (16x): 784 (2.4)Vulnerability (5s): 16% Incoming Damage, 16% Incoming Condition Damage

I believe it will trigger life steal too if you have life steal trait that are based on damaging enemy (Like Vampiric Presence)

I know i used Mad King runes before on my condi reaper in the past with Chilled to the bone, To answer you question yes it will proc Vampiric Presence with each raven hit, it can also crit to proc on crit effects too.

It will also attack anything in the radius. My wife put this rune on her necro cause she thought it was thematic and would be fun. She then tried playing with minions which she kind of enjoys. So, after dying while running back to a boss fight, she summons her felsh golem, the rune attacks everything around her, and now she is running slower due to being in combat and the minions are attacking the wildlife as she tries to get back.