HQSoundz has released some new loop kits.
Revenge by YasinBeatz includes 10 loops in drill style using dark sounds of vocals and strings. Also available is Azog, a dark kit in the style of Future, Lil Gotit, Pyrex Whippa, Southside, and Nardo Wick. The pack includes 10 wav loops created from scratch by Loop Legend.
Both kits are free to download. However, note that the samples are not royalty free.
More information: HQSoundz