Terrified Elephant

Only appears during the Stampede Mini World Change. Terrified Elephants are extremely fast when charging (as fast as a level 200 player), but the charge only lasts for about 5 seconds, after which they go back to being rather slow. Kill 5 of them to receive the achievement Trail of the Ape God.

These creatures will kill monsters in their way to get to you. They can also retarget.

A terrified elephant attacks in melee range. A terrified elephant never retreats.

Knights should fight them with an one-handed weapon and shield.
Paladins should attack them from a distance with a one handed weapon and shield, but will not be able to outrun them while they are actively charging. Be careful if running from them once their charge has worn off as you may run into more of them or other creatures like Carniphila that spawn nearby.
Mages should use their best wand/rod and use Great Fireball or Thunderstorm if surrounded.