(So sorry i cant make a drawing for this one QwQ)
Pikachu:*now female* UM ASH?

Greninja:*now a female* WHAT HAPPENED??!

Talonflame:*now a female* IM A GIRL?!?

Noivern:*now female* u-um t-t-this i-is s-scary!

Hawlucha:*now female* *HYPERVENTILATING*

goodra:*now female* h-huh....woah this weird!
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Braxien:*now male* SWEET ARCEUS NO!

Sylveon:*now male* I DONT LIKE THIS!

Pancham:*now female* EW GROSS!

Braxien and sylveon:WHAT'S THATS SUPPOSED TO MEAN?!

(Y/n): *now male* u-u-um w-what j-just h-happen???
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Luxary:*now female* H-HUH?!

bunnelby:*now female* What happened to me!?!?

Chespin:*now female* ...meh...*continues eating pokepuff*

Dedenne:*now female* U-UM BONNIE HELP!

squishy:*genderless* what happened to everyone?

Ash,serena and clemot:..........
Thanks for the ask Skyfire84