Need a legend?

[time123]

I just want to know how to get the lengen map i got all 49 badges but I still cant go to the lengen map

[BenDean]

I'm not the Best But heres My Pokemon Please trade i want to Beat Elite 4

metallic_Raichu 16
shiny_Chikorita 10
Ivysaur 16
Gallade 16
Pikachu 21
shiny_Taillow 7
Torchic 12
Corsola 14
shiny_Tentacool 5
shiny_Pachirisu 7
Absol 7
shiny_Wartortle 16
shiny_Monferno 19
Lapras 25
shiny_Noctowl 43
shiny_Ludicolo 22
shiny_Corsola 30
shiny_Grovyle 27
Charizard 36
Torterra 35
Glaceon 36
Gabite 32
Leafeon 31
shiny_Swampert 45
Infernape 42
shiny_Venusaur 40
shiny_Electivire 45
shiny_Duskull 29
Milotic 46
shiny_Flareon 32
Infernape 52

-Team-

Empoleon 61
shiny_Feraligatr 50
shiny_Butterfree 60
shiny_Blaziken 57
shiny_Charizard 50
Slowking 63