The funny thing is the lore for egi glamours means any of these are on the table for glamouring over the useless carbuncle and pre-90 gem summons. Since the glamour is just shoving the aetherial construct into a new appearance it doesn't matter if that's a primal's image or just something built to look different (like carbuncle). Still be funny to see Leviathan poop fire but it's a completely valid thing for how the system was described.
