A few weeks ago, I discovered the anime, Akame ga Kill. It's kind of like The Hunger Games universe meets Deadman Wonderland. Throughout this universe are specialty weapons known as Imperial Arms. The most interesting of these to me is Beast Imperial Arms Hekatonkheires AKA Koro. It starts out as a small cute dog that gets larger and to defend its master and savagely attacks its prey.On command, Koro can "bulk up", gaining long muscular arms and pecs adding to its already insane attacks. Its last ditch ability (The Trump Card, an ability shared by many Imperial Armd) is "Berserk": ala Akamaru in Naruto Koro's fur turns blood red, he loses his gut and is virtually unstoppable. If you somehow survive, Koro is rendered inert for several months after using its Trump Card.
My only problem with Koro is his user: Seryu Ubiquitous. A female soldier serving in the corrupt army that treats the poor worse than they treat dirt. She has an incredibly insane sense of justice and has fed many innocent prisoners to Koro (granted he needs a lot of energy...)
Someone please find him a better home.
®Akame ga kill is Takahiro's property