Actually, I wasn't including FF1's Cid, and was instead referencing Mystic Quest's Cid. But, semantics.
As for Metagloria's riddle, the "One, two, three, four" part makes me immediately think of Level 4 limit breaks, but I'm not really sure how any of them would apply to the rest of the riddle. Give me a bit, and I'll come up with a guess.
EDIT: Here's my guess: Enemy Skill Materia