Top Cow is giving us a look at the Darkness, Witchblade and Angelus from long ago. We know that the forces have sought out human hosts throughout time. With Trinity: Blood On The Sands, we see three of those hosts in the Arabian desert during the 14th Century.
The comic does a nice job of giving us a look at a tiny bit of the history of this "Trinity." While it is an interesting and informative look, I'm not sure how it would appeal to casual readers or Top Cow's comics. If you are a fan of the Darkness, Witchblade and Angelus, there's a good chance you'll want to check this out. To me, the most interesting part was seeing the parallels of the Witchblade being separated among two hosts as we currently have with Sara and Dani. Perhaps some things are simply fated to happen.