>>45607810Unironically giving them 148 special attack and speed wouldn't make them any less interesting. Even if they could learn Psychic or something. They're still under species clause.
Giving them some neat ability that isn't levitate would be great and nowhere near too drastic. Hell, give them something overpowered. More Unown in the party=more damage or something. Or every time you swap in an Unown it gets more boosts.