I would like to start this out by saying that I know this is a simple MOC. I don't have the parts to make it super complicated and honestly don't care.
In an alternate universe, Makuta as a species exist on Okoto. She is now on a mysterious island with a group of Toa and other species, including another Makuta named Oronix, who is from the MU. Her powers and twin axes primarily focus around poison.
Yes, this MOC is capable of uniting with another creature. I used the same pin system on the back that the official sets used.
I'd also like to mention that this was specifically created for a text based RPG I'm involved in on these boards.