Solved
Why is the buster sword back??
When the Final Fantasy event first came out, the buster sword was marketed as a mythic cosmetic item that would never come back into the store for purchase after that event was over. That message was...
Hey Pot_smoke219569,
In addition to what XHelperZ's mentioned correctly, it is worth noting that the Buster Sword R5 (the mythic / universal heirloom that can be used on any of your characters) is separate from the Buster Sword R2R5, which is the one in the event that enables all the combos and has different gameplay.
The heirloom did not return to the Mythic Shop after last year's event, as stated, and still hasn't - the one available as part of the event is not an heirloom and just works like picking up any other weapon in a match, it cannot be purchased in the shop.
Nothing has changed from that announcement last year, hopefully that helps clear up any confusion.
