wait... gen 1 palkia,aegislash and yveltal sprites ?
Pokémon Gen 1 Has Mewtwo And Mew As Legendary Pokémon
Pokémon Gen 4 Has Palkia And Palkia Don't Has Gen 1
Pokémon Aegislash No Has Gen 1
Palkia And Aegislash (Also Yveltal) Gen 1 Sprite Made By Users (Unknown)