Fissure opens volcanic vents below your opponents and causes damage. This skill is best used in open areas where you are free to move around and coax your enemies into the area of Fissure's effect. Of course, Fissure can be used anywhere, but ideally you'll want to lay it down directly below your enemies or where they're heading. For example, if your in an enclosed area like the Catacombs or Jail, drop it in a room where a group of enemies must cross the Fissures as they approach you. This attack does an impressive 15-25 points of damage per second (over 3.2 seconds); damage increases as you add skill points. It also has a cool-down time so that it cannot be used in quick succession. [1]
References[]
↑Diablo II Ultimate Strategy Guide, page 111. Blizzard Entertainment, 2001.