Treat it like a Giant Spider. A common idea is to wear a Strange Talisman to reduce their often used HMM damage. Knight: Try to face only one of them, and healing with Exura makes a little chance of waste. Level 90+ recommended. Paladins: Just run them like any other monster but avoid luring more of them. Using Divine Missile would be useful when there is more than one. Mages: Treat them like normal Vampires with stronger attacks, so heal early. Using Flame Strike and Wand/Rod it the most common strategy. Wearing an Lightning Set can reduce their HMM damage aswell.