HDMI splitters, unless powered, aren’t recommended. You’re reducing the HDMI signal, including the ARC or eARC signal, by 50% or greater, and you’re never certain what levels the receiving device is expecting. Nor, for that matter, are you certain that the originating device is sending a specific signal or a specific level.
The HD Fury Arcana itself isn’t a splitter, but an eARC creating device. Is this what you’re referring to as an ‘Arkana’? I’ve used the HDFury device several years ago, before I updated my TV, without issue.
If you’re looking for devices that create ARC or eARC signals, there is the HD Fury Arcana, the Feintech VAX04101k, and the OREI HDA-935. You can also order from those links from the companies directly, or check your local retailers for availability. Amazon may carry some, depending on location. At this point, there may be more manufacturers, I haven’t been keeping track.
It might help this community help you if you were more specific about which devices you have, and what you’re trying to do.