Dropped *another* 50 mythril on the ff3 banner.

Refia BSB dupe.
OK legend materia (2 turns no action delay)
aaaand Refia Legend Materia (25% fire doublecast)

That last one is worth the 50 mythril, and might be worth the 150 I've dropped on the banner total (dupe of CoD's legend materia, and Arc's healing BSB). My Refia is a freaking beast on anything not resistant to Fire, and giving her a doublecast chance is very nice.