VIDEOS:
Koo-Koo, The Energy Mutator
In the episode "Pet Peeved", Duck Dodgers adopts an energy mutator called "Koo-Koo" who looked perfectly adorable until it absorbed electrical energy where it gets turned into an ugly monster.
Example of:
Killer Rabbit
"Return to Sender" Vigor
Example of:
Energy Absorption
Yang vs Roman
Example of:
Energy Absorption