Where does Ancient Buckler Drop?

[NintenPyjak64]

ugghhh, so if that's true, then I am guessing that the main hand blm weapon is a cudgel and not a staff? Sadness if so!

The chance it's in turn 5 is somewhat high considering that most if not all drops have been recorded for turns 1 2 and 4
Plus from what I heard the scepter and shield are very good for BLM, although I can't compare to relic +1 off the top of my head (and on mobile)