The attacks of a Vampiric Horror cause its master to be healed for the same amount of damage they deal.
Vampiric Horror's damage versus an AL60 target in the Isle of the Nameless ranges from 17 to 49, including both critical and non-critical hits, with a mean damage of 27.5. The critical hit rate and specific critical and non-critical damage ranges are currently unknown.
Vampiric Horrors have roughly level*20 + 80 health and level*4 armor.
A level 18 Vampiric Horror has approximately 440 health and 72 armor.
Vampiric Horrors attack roughly 1 attack per 3.17 seconds (30 attacks in 95 seconds).
At level 18, Vampiric Horrors live for 1 minute 24 seconds.
Vampiric horrors will attack the target closest to them, they will not switch target until their current target is dead. The minion master has no control on the minion's target.