New special items for evolutions,
these can be gained from PokeStops, but are considered very rare.
Dragon Scale will evolve a Seadra into a Kingdra
Sun Stone will evolve Gloom into a Bellossom & Sunkern into a Sunflora
Kings Rock will evolve Poliwhirl into Politoad & Slowpoke into Slowking
Metal Coat will evolve Onix into Steelix and Scyther into Scizor
Up-Grade will evolve Porygon into Porygon2