Astlibra Revision Secret Boss: Anulis "if"
0The last challenge of the Arena (originally) has you face down with Anulis as an adult sporting her own adventurer gear. Presumably this is what she would have become if you both escaped bahamut together and became adventurers.
Difficulty: 9/10
It's because of the no items which means no healing (other than whatever regen effect you may have)
Initially she's fairly easy because she'll just do some basic sword slashes with sword beams but you need to respect the shield damage they do because you can only really block one of them.
Then she starts using her magic with Options which gives her 3 rotating spheres a few feet away from her body basically forcing you to stay up close. Then she covers the arena in mines to keep you on the ground. Lastly is her ultimate attack the spirit bomb... or the legally distinct spirit bomb and you don't wanna get hurt by it trust me. It's no instant death but you can't afford to take pointless damage in this fight.
Also once you reach the revision content there will be a Bonus cup that features all new challenges for you to take down... like 2 Krishna's at once because one wasn't hard enough.