You get a chance to add transforming sagas that represent powerful past Avatars, and with all the clues, earthbent lands, and unblockable little spirits running around, you'd think a 100-year war might come to a conclusion
With many formats revolving around 20 life, dealing 10,000 damage is way overkill, and it's most likely there for flavor since Final Fantasy 's Jumbo Cactuar also has an attack called 10,000 Needles that deals that much damage to one party member
If thats something you want, sleeve it up
There are loads of information on this forum for example about that topic that i suggest you to check before making big purchases or forming collection goals
Signing Off Thank you for reading
Theres no universal winner