Immortal Wallies for reference: http://brikwars.wikispaces.com/The+Immortal+Wallies

Randalf's magic staff has a ribbed knob for maximum pleasure. This alone is cause for terror.
Being a wally in the Immortal Family is a living guarantee of a daily beating and/or disintegration. While not being able to die it still hurts, a lot. Randalf has developed a defensive strategy that can unsettle and drive away most short range using Immortal Maniacs looking to wipe him off the face of creation.

Eating bananas in a libidinous manner...

Elite Immortals just nuke it from orbit but it's guaranteed to drive most Immortals and mortals away.