Verbose
Deity
For energy, try an Abyssinian. It's The Duracell-cat.Dogs are always for fighting n killing. dogs are generally more aggressive and energetic than a cat, if we scale a cat up, it would still be a cat and dangerous to small animals. A dog would pick fights with things bigger than them.
And one shouldn't mistake the fact that cats are nature's sprinters with somehow "lacking energy". The energy is there, it just gets delivered in short bursts, usually out of sight of human eyes. The tendency is that when we see kitty, it's just killed and eaten a family of five small and furry things, and is having a well deserved rest.
I've seen fit outdoor cats jump 2 meters more or less straight up from a standing start. Never saw a dog able to accelerate like that.