Sanctuary Keeper

[alexholker]

For Holy Waters, you are out of luck. Except for buying them, you can only get them by stealing from the large mechs in Zanarkand and Bevelle. I'd recommend going back into the caves and hunting there for the other items on your list.

The various Mechs (the ones that collapse when stolen from) can give you lots of different types of potions as well as Phoenix Down/Mega Phoenix when destroyed, and you can steal Mega Potions from the Grendels.

[Edit] As for actually killing it, make sure that at least one character has the Dispel ability. Also, apparently it isn't immune to Threaten, so you can leave it pinned there while you beat it up.