negative. my Beam Rifle functions on magic, as per my origin. it works by consuming the souls of the dead to generate incredible amounts of negative karma, which it then focuses into a catastrophically destructive beam sorta like a laser except it absorbs and destroys Light instead of being made of it. further, taking a set that uses a weapon or technological props still doesn't cross origins depending on how we are looking at it: my magic origin Assault Rifle/Ninja Training blaster isn't using a magical rifle, they're just using a regular 'ol rifle (that is also a flamethrower/grenade launcher/shotgun/bean bag launcher) along with my sick magical ninja abilities. they aren't indicative of a technological origin or even any proficiency with technology in general.
likewise, Dark Miasma may sorta imply a magical flavour but really it's just referencing some place called the netherworld which could also just be construed as one of the many alternate dimensions that exist. a character could invent a generator that creates that same energy, or be exposed to some kind of substance or procedure which allows their body to interact with those energies, or they could have spent decades practicing a unique martial art and meditation regime that allows them to naturally conduct negative energy safely through their own body and mind.
maybe it's just because i'm used to them, but to me all of the currently existing powersets are really easy to justify being used by any origin requiring at worst to player to ignore select text but still be coherent and easily understandable to others: "yeah, i know i'm technically a 'necromancer' but think more herbert west style 'reanimator', i don't really go in for all that binding circles and shaving every hair on my body to simulate ritual purity"