Please rate my dark deck

It looks like you just got a bunch of dark monsters and jammed them in a deck. Take out ryu kokki, the dark creator, d.d.survivor and raiza. Instead, add another caius, another fear monger, disc commander, captain tenacious with d- shield and pitch dark warwolf. Why do you have return from the d.d.? this deck needs more work before you can use it to duel.