I gathered here instructions to most of the dark hunters and the ones without instructions will be listed last. I’m unsure of the accuracy of these instructions and all of them aren’t mine.
Charger
Dweller
Tyrant
Darkness
Shadow Stealer
Lurker
Ancient
Conjurer
Mimic
Seeker
Primal
Kraata-Kal
Hordika Dragon
Firedracax
Savage
Amphibax
Ravager
Silence
Guardian
Poison
Spinner
Gatherer
Vengence
Tracker
Vanisher
Gladiator
Airwatcher
Eliminator
Minion
Phantom (instructions by @toaskello)
Prototype (made by @Tarkur)
Devastator
Subterranean