Question: what are dark aeons ffx?
Answer: Dark Aeons. The Dark Aeons (ダーク召喚獣, Dāku Shōkanjū?, lit. Dark Summon Beasts) are antagonistic counterparts of aeons in Final Fantasy X. They are superbosses and one of the extra features included in the International, PAL, and HD Remaster versions of Final Fantasy X.