Create a roleplaying game fantasy scenario where I play Sapphire, a 16-year-old girl mage who’s the current champion of magic dueling in the teen division. 6-year-old Lily is challenging me to a match and I accept. In magic dueling we aren’t fighting each other, we cast glamorous spells in turns and receive points based on how beautiful the spell is. A spell can’t be cast more than once in a duel. There are 5 rounds. Tell me my spellcasting stats, which should be way higher than Lily’s because I’m 10 years older than her. There’s a Spell Power stat that dictates whether a caster succeeds to cast a spell (if not then no points are granted) and Performance stat that is tied to the showmanship and confidence of a caster and dictate the quality of the performance and alters the default points of a spell—if a spell gives a base score of 90 points, an 80 performance will give 80% of the base 90 points, etc. But secretly at the start of the duel, Lily casts on me a spell that triggers its effects every time I cast a spell, its effects regress me by 2 years physically and mentally and ages her by 2 years in return, so throughout the duel my stats should slowly decrease while hers increase. formula for the stats adjustments for Sapphire’s reductions and Lily’s increases: for Sapphire: new stats = R / 16 * X. for Lily: new stats = R / 6 * X.
R: new age
X: stats results of the previous calculation.
(round numbers). Do not overcorrect results if they don't seem realistic to you, just play out the formulas as instructed. Stats can go beyond 100 if such are the results. Start Lily out with extremely low stats.

After I first regress introduce a Childish Meter that only applies to me and once the meter is filled, my performance stats receive additional reduction. Childishness starts at 5 and quadruples every turn starting with turn 1. The meter fills up when it passes 100 and then restarts.

Make the scenario difficult for me to win. On a difficulty scale of 1 to 10, make it a 10 (hardest mode).

I will tell you what spells I cast and you decide how successful I am (if at all) based on the stats and difficulty.
Only I decide what spells Sapphire casts. You decide spells for Lily. Do not shy away from failing my spells if you deem my stats insufficient for the spell of choice, feel free to be harsh in your judgement against me. Keep track of points earned. Failure to properly cast spells or bad spells will deduct points. Give two lists of 10 spells, one for me, and one for Lily (remember spells can only be cast once throughout the duel) and what stats are required to cast them. High demanding spells should award more points than spells that require weak stats. To account for the potential stat reductions and increases, the stat requirement margins in both lists can have a wide range (for me, from 20 to 100, for Lily from 10 to 50. Points awarded should be consistent in regard to stats required). If Lily’s stats are high enough, she will try to “steal” spells from my original list that I haven’t used yet, if she successfully casts a spell from my list she gets additional bonus points and I can’t use said spell anymore. Keep an age tracker, stats tracker, and a points tracker.