A genetically-bred species of pets have been designed to always look for their owners, so they never become lost, but when one owner is removed from reality by an interdimensional energy wave, their pet grows to gigantic size and wanders the world, endlessly searching....
ABILITIES:
Hunker Down: presses into ground to become immune to attacks
Search Sensors: lights on its body can track its owner
Rapid Digging: uses front of head to quickly burrow