The Falchion had the curve similar to the middle-eastern Scimitars but it was used extensively in the West. In a sense, it's the western version of Scimitar. For those adventurers who favor the curve blades, this is the next step after the Tulwar.
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If Final Fantasy XI was an offline game with the same storyline (up until Chains of Promathia), it would've been one of the greatest RPGs ever made.