I need Arceus, Keldeo, Meloetta, and Genesect and then my pokedex will be pretty much complete. I'll put a list of Legendaries and Shinies I have available for trade. If you're interested in the details of any of them feel free to ask.
Used Legendaries: Level 100 Rayquaza Level 100 or level 74 Groudon (Ruby or Emerald)
Articuno Zapdos Moltres Raikou Suicune Mewtwo (All above from Fire Red and unused) Regirock Registeel Regice (From Ruby or Emerald) Ho-oh (Emerald, hacked for event item, otherwise legit) Darkrai (Diamond, hacked for event item, otherwise legit) Mesprit (Diamond)
Shiny Giratina (Event) Garbodor Pichu (Event) Vulpix Treecko Pelipper Omanyte Gengar (Used enough to evolve from Gastly to Haunter, level 25)