Fairy, as a playable race, was first introduced to Dungeons and Dragons 5e in Wild Beyond the Witchlight. They later saw a reprint in Mordenkainen Presents: Monsters of the Multiverse. The text is formatted differently, but otherwise there doesn’t appear to be any difference in racial abilities.
Notably, fairy is one of the few playable races that have flight. Aarakocra, owlin and the tiefling variant from the Sword Coast Adventurer’s Guide are the others. Many DMs are hesitant to play with these races. The added mobility can be hard to manage in and out of combat. Fly cautiously at lower levels, for indeed, a fall from as little as 20 feet can be fatal for low-level PCs. Fairies have a flying speed equal to their walk speed, which starts out at 30 ft, but can’t fly if they are wearing medium or heavy armor.
Fairy were written to be versatile. They can take a +2 and a +1 to any two ability scores, or +1 to three different ability scores. They also get the druidcraft cantrip by default. Fairy also get a single use of faerie fire per long rest at 3rd level, and the same deal on enlarge/reduce at level five.
How tall is your fairy?
Both books that talk include the fairy race are silent on how tall fairies are. Their size category is Small. This makes them smaller than gnomes and halflings , which have a base height of 4′ 11″ and 4′ 7″ respectively. In DungeonSports cannon, they have a base height of 2 feet. They are bigger than pixies and sprites as described by the monster manual, So we’re talking about a beefier classy of fae here.
Honestly, I don’t care about arena contestants like these fairies all that much. I’m much more interested in how much to charge them for magical items, or which monsters are the best to kill them with. You’ve got the links if you agree.