I'm fairly certain that Dark Eldar parts are compatible with Harlequin parts if you ever want to make your troupe a little more sinister. Welcome to the forum and the hobby! Don't give in to peer pressure, the hallucinogens are really powerful around these parts!
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My 8th edition fandex is complete enough for appraisal (note that I completed it before any previews had been released) . I'm sure there are inconsistencies, please let me know where they lie as you find them. Thank you! Click here for fandex