One champion that excels as a flex pick is Seraphine. This pink-haired pop star may have a lot of haters on internet forums, but her strengths as a champion can't be ignored. Her kit gives a mix of both enchanter and control mage power, allowing her to be played both in mid lane and as a support.
Is Seraphine support or MID?
Riot Games intended for Seraphine to be a Mid-laner and she is exceptional for that role. However, her kit is also very good for Support. She can use long-range strikes and crowd control to bully her opponents out of lane which gives the ADC plenty of freedom to farm minions.
Is Seraphine a mid champ?
Seraphine is a champion that sort of feels like how the LCK played Karma back in Summer 2020. Her flex pick ability is extraordinarily strong, with multiple regions electing her a mid-pick, mage marksman pick, or support.