Cloud Grenade

Borderlands 2 introduces a new variety of grenade mod: The Area of Effect. When throwing a grenade, an area surrounding the point of detonation will inflict elemental damage to enemies who enter it. A Corrosive Cloud grenade will leave a lingering cloud of green gas, causing corrosive damage. A Tesla grenade will drop an electrode that will electrocute enemies in its range. A Fire Burst grenade will drop a set of rotating nozzles that spew fire across the ground in all directions.

There is no Area of Effect grenade mod for the Slag or Explosive elements.