The abilities of vampires
Devouring Swarm can make Veteran Rank 10 vampires deal with 300 damage they take and about 300 heals per target hit. That means, every Veteran Rank 10 vampire can get thousands of health back per second. Thus, in the radius of their ultimate, others cannot stop VR10 vampires unless they release more than 300 damages per second to vampires.
Stage 4 Vampirism and gear is helpful for VR10 vampires to reduce Ultimate cost. As before, Devouring Swarm cost 200 Ultimate to cast, but stage 4 vampirism reduces the cost of vampire skills down 60%, which means it costs 80 Ultimate to cast. Besides, there is a gear which can bring a steady ultimate reduction cost. One player has got a 44-ultimate cost by itemizing his gear.
Ultimate regeneration. VR10 vampires have an ability to regenerate ultimate. The more you attack, the more ultimate vampires get from the fight. Thus, they have infinite ultimate to cast continuously.
Veteran Rank 10 vampires possess so powerful abilities so that others are hard to defeat them. Some players have given their suggestions here.
First, stay away from them. This suggestion is easy to say, but hard to do, because vampires can use Sword and Board skill Shield Charge or one of its morph to shrink down the distance.
Second, use Crowd Control abilities to vampires. But it is also unpractical to go through it, because vampires can break free from silver bullets in one second, and are immune to Crowd Control abilities. Besides, they also get Talons and snare their opponents.
It is really hard for many players to deal with Veteran Rank 10 vampires. Players can discuss this thread at eso-gold to take down them. Besides, you can also buy eso gold at eso-gold.com to back you up.