Mattel released some carded images for their upcoming Hurricane Hordak & Leech figures. These are not final product so we can expect a few minor adjustments before their actual release in September on Mattycollector.com.
Hordak has arm attachments that are compatible with Roboto and Trap Jaw. He is a quarterly variant and part of Club Eternia. If Hordak's bio is confusing to you and creates more questions then answers, Mattel says not to worry as more info will be coming soon.