[Feature] Changes to late classic mode Rival. (SPOILERS)

[Yasashi2588]

Is your feature request related to a problem? Please describe. Currently Fairy/Steel turns classic into easy mode and to counteract that, the Rival could get a random uber legendary from the list below instead of always having the same one.

Describe the Feature Every Run the Rival randomly gets one of the following Legendaries starting on floor 145 and upgrade them to their ultimate form on floor 195:

• Mewtwo > Mega Mewtwo X or Y
• Kyogre > Primal Kyogre
• Groudon > Primal Groudon
• Rayquaza > Mega Rayquaza
• Zygarde 50% > Zygarde Optimum
• Dusk-Mane/Dawn-Wing Necrozma > Ultra Necrozma
• Zacian Hero of many battles > Crowned Sword
• Zamazenta Hero of many battles > Crowned Shield

Maybe:

• Palkia > Origin Palkia
• Dialga > Origin Dialga
• Zekrom > Black Kyurem
• Rehiram > White Kyurem
• Diancie > Mega Diancie

Additional context This would change classic mode up from only preparing for Rayquaza and eternatus. And of course all picks should appear in their rare shiny variant.

[HyperRes]

Imo this would be good as a NG+ of sorts so the rival would always have mega ray on the first run. Idk how u fix the end screen with mega ray in the background tho