Ah, Death-suffix. It reminds me of a lot more clichee (I'm not sure if I spelt that right) names related to evilness, and not only for warriors. I think I once saw a "dark evil blood" in Bonfire. Yeah, jet black with neon red markings.
Now, now, everyone is entitled to name their cat however they want, but not even trying to find a reasonable prefix for her/him, and instead going with whatever sounds "cool" at the moment usually doesn't make the cat a respectable character.
When I create a warrior cat, I try to find names suitable to their backstory, colour or personality. Silverstream-A grey pelt, former Riverclan member. Crimsonpaw-An orange-red pelt. Timidbreeze-Swift, soft-spoken, shy. I also enjoy to making up funny names, such as Trollstar and other meme inspired names, just for the sake of it. But it's not something I'd RolePlay with.
In the end, you can name your character the way you want it, but it's usually the well-thought names who get more respect and admiration.