Bwahahahaha!
Now thats Brilliant. I love how all the 2 Gem fusions look well designed and fantastic, however when they ALL fuse together they look like a ugly abomination with over-designed elements, two mouths a whaspy voice, green clown hair and spider-like limbs.
That was probably a middle finger by the designers who kept getting "OMG GET US A 3 Gem fusion!" messages.
Outside of that, very very awkward story (In a good intentional way). Probably should have wen't with Opal.
Also Steven is most likely Immortal as well.....Oh lord. That has got too suck. For a Human being that is.