【BLADE & SOUL】BASICS : Countering Assassin Type Mobs
Once enter combat with assassin type mobs, they have a chance of casting a skill that shown as tree cutting and they go invisible.Such skill has possibility to stun players and follow by high damage skills.
Turn around when they disappear, and prepare your class's counter related skills as they will charge back in 2-3 sec. Incapacitate them by daze, knockdown or so forth, then retaliate