It's not the Unversed. They're the bunny Dream Eaters that got revealed in the Famitsu leak with The Three Musketeers.i found the magdrola unverused in the trailer or they look just like them at lest
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Also i found the summoning of the nightmare and spirits the nightmare is on top and the bottom is the spirt
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and the nightmare summon looks like what happen to the beast that Aqua killed in the RoD
Also it wont let me post photos so i had to use imageshack