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Three Yans give out 128019 EXP, the most EXP you can gain from a single battle. If a single character at Level One with the Level Up ability takes all that EXP they will gain 38 levels. That is easier said than done though. I was lazy in the preparations for this fight, and synthesized what I thought would be the minimum amount of Amethysts needed, but didn't foresee that Doomsday wouldn't always hit for 9999 due to random variance. But I still survived thanks to pure dumb luck :P

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