An option yes, a requirement no. Sburb never creates a party that is bound to fail, though it may give it loooooong odds.
(unless someone draws the Sylph of Rage, the Mage of Equilibrium, or the Jack of Chaos, but I doubt it'll happen!)
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Currently playing: League of Legends, Chrono Cross.
Current Projects: Fool's Overture, CYOA: http://www.gamefaqs.com/boards/8-gamefaqs-contests/60143513