#gotham riddler

Ed making Oswald some mechanical penguins

Ed owns a cat. Oswald keeps gifting Ed lilies. Ed politely accepts but has to throw away the lilies so he doesn't hurt his cat. Oswald finds out Ed is throwing away his flowers and reacts poorly. (Confrontation?)

Oswald buys a gay bar which happens to be the one where Ed frequently performs in drag

Sea Lion!Ed/Penguin!Oswald

When Ed was younger, he had to have a partial leg amputation due to an infected injury. Oswald doesn't know this and assumes that Ed's mobility devices are for Oswald's recovery so he lashes out against them (throwing them, kicking them, refusing to look at them), but when he's finally able to be fully conscious, he realizes that Ed is an amputee.

Ed doing Lucius' makeup

Ed being possessed by the entity known as riddler

Twin merpeople Edward and Edwin share a psychic link

Ed has an identical twin that no one else knows about until he shows up one day

Ed and his twin used to be separate people, until they were killed in a freak accident and Frankenstein-ed together out of what was left of them. Now they don't know which one they are.

Ed comes out as genderfluid to his girlfriend Kristen

Ed left the GCPD and transitioned, changing her name and growing out her hair. Kristen finds the new Ms. Nygma and is intrigued by her and has a lesbian awakening.

(Season 1) Ed smoking weed for the first time and Harvey trip sitting for him

Ed sets up a makeshift school for the kids in the narrows to cover up for the fact that he's re-teaching himself the basics.