"Choose Your Fighter" design shows 9 characters from the Horned Warrior Friends webcomic with silly names:

Narwhal in a tricorn hat is "Captain Stabbyswim"

Unicorn with a rainbow mane and tail is "Lawrence Rainbow-Farts III"

Pterocorn with an eyemask is "Burglarisation"

Triceratops in a red party hat is "Triple Threat Bobbi"

Chameleon is "Gossip McSneakerboi"

Communicorn (communist unicorn, red with yellow mane) is "Delightful Samantha v6.1"

Pink Girafficorn with blue mane is "Gallonpants"

Llamacorn and Alpacorn wearing shades are "They Fight Crime (ish, a bit)"

Rhino is "Steve"