Slow moving mechanical melee Tanks. Specializes in protecting other creatures.

Normal Elite Traits
Bubble Guardian Bob-o-tron Shields the closest creature from damage
Aura Guardian Enz-o-tron Projects an intermittent aura that shields surrounding creatures from damage
Wall Guardian Shallnotpass-o-tron Creates a wall that blocks the hero's projectile


  • Originally called Defend-o-trons and Robo-shield-o-trons
  • Legacy versions of this creature prior to August 1, 2014 have been afflicted with incurable Chickenpox

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