What's the best way to grind Magus Stones?

[Brodabbong]

I've been grinding away stealing as much as possible to get the Magus Stones for the coin shop. I'm wondering if anybody has some good early game grinding strategies for Magus Stones.

[Mastertrek]

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The best spot is Goddess Shrine but you can't see it events at Royal City 2nd Visit is done. Most likely it's due to the fact of ability that increases Magus Stone Drop rate.

Early on the grinding is required for them and I really had no need to use them and I was saving up on them for one of top quality weapons (Metal Sword) without which the Mage and Mage group in Heroes Shrine was pretty much a death at that time for me (all other groups could get sleep or paralysis so I had enough time to heal out of that)