No prservative algorithms, aka no algorithms to ensure it is possible, the game is approximately 90% luck. And krystar, you can't, shows how much you know, dumbass.
It would be nice if he wrote a guide of what gives what tier, since I cleared the 4 hardest dungeon, had max attack offense and defense, had max jobs of guard stablboy and dragon tamer, and only got tier 5.
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