That guy got a bit lucky, in my fight he did the clone attack, while invisible and surrounded by those light orbs >_>
But that fight did leave me with tons of questions. Going from KH lore, that mysterious figure has the ability to manipulate time (and there was one Nobody from Organization XIII that had a similar power).
It could be that the mysterious figure is actually the fully powered (complete) person of someone from Organization XIII (since destroying a Nobody and it's respective heartless means that the Person would become whole again).
That leads to a big issue though, since in neither KH game nor spin-off, the Heartless counterparts from Organization XIII members are shown, except from Xehanort's Heartless in KH1 (who went by the name of Ansem).
And to think we will have to wait a couple of years to get these questions answered >_>
Current PC Build
CPU - i7 8700K 3.7 GHz (4.7 GHz turbo) 6 cores OC'd to 5.2 GHz with Watercooling (Hydro Series H110i) | MB - Gigabyte Z370 HD3P ATX | Gigabyte GTX 1080ti Gaming OC BLACK 11G (1657 MHz Boost Core / 11010 MHz Memory) | RAM - Corsair DIMM 32GB DDR4, 2400 MHz | PSU - Corsair CX650M (80+ Bronze) 650W | Audio - Asus Essence STX II 7.1 | Monitor - Samsung U28E590D 4K UHD, Freesync, 1 ms, 60 Hz, 28"
