A Level 54 Staravia will evolve but the reason it's not evolving is because it's holding an Everstone. Additionally it will not evolve while in the Daycare.
If you catch a Pokemon in the wild that is past the level of evolution, it will evolve when you level it up once. For example, if you catch a level 54 Staravia and level it up, it will evolve.
Lvl 54
dragonair will evolve at lvl 54 or 56
well staravia evolves into staraptor at lv 34 so its possible!
34 Oh yeah? then why do i have a level 54 staravia, sucka?
yes, it evolves into Mandibuzz at lvl. 54. It's only in Pokemon black version
does it try 2 evolve but then u keep pressing a,b,a,b? or does it hold a everstone, if these don't help go get another staravia, i dont want my staraptor do u want it its level 54. I just had the same problem but when u get it to 54 it evolves. If it duznt help try making it learn brave bird.
rufflet evolves at level 54 into a braviary.
Lv 33 - Screech, Lvl 38 - Discharge, Lvl 43 - Mirror Shot, Lvl 46 - Magnet Rise, Lvl 49 - Gyro Ball, Lvl 54 - Zap Cannon
The Pokemons are: Lorelei: (Ice Pokemons) Dewgong lvl 52 Cloyster lvl 51 Slowbro lvl 52 Jynx lvl 54 Lapras lvl 54 Bruno: (Fight/Rock) Onix lvl 51 Hitmonchan lvl 53 Hitmonlee lvl 53 Onix lvl 54 Machamp lvl 56 Agatha: (Ghost) Gengar lvl 54 Golbat lvl 54 Haunter lvl 53 Arbok lvl 56 Gengar lvl 58 Lance: (Dragon) Gyarados lvl 56 Dragonair lvl 54 Dragonair lvl 54 Aerodactyl lvl 58 Dragonite lvl 60 Rival ? (Name) Pidgeot lvl 59 Alakazam lvl 57 Arcanine lvl 59 Rhydon lvl 59 Exeguttor lvl 61 Blastoise Charizard (Depending on your starter) lvl 63 Venusaur Good Luck!!!! ^^
lvl 54
Lvl51 Graveler,Lvl 51 Rhyhorn,Lvl 53 Omastar, Lvl 54 Onix,Lvl 52 Kabutops