Evolutionary Items
Stones
Dusk Stone - A stone for making certain Pokemon Evolve.
Dawn Stone - A stone for making certain Pokemon Evolve.
Fire Stone - A stone for making certain Pokemon Evolve.
Leaf Stone - A stone for making certain Pokemon Evolve.
Moon Stone - A stone for making certain Pokemon Evolve.
Shiny Stone - A stone for making certain Pokemon Evolve.
Sun Stone - A stone for making certain Pokemon Evolve.
Water Stone - A stone for making certain Pokemon Evolve.
Everstone - A stone used to prevent Pokemon from evolving. Must be held.
Ice Stone - A stone for making certain Pokemon Evolve.
Trade
DeepSeaScale - Evolves Clamperl into Gorebyss when Traded. Boosts Clamperl's SP-DEF by 5+.
DeepSeaTooth - Evolve Clamperl into Huntail when Traded. Boosts Clamperl's SP-ATK by +5.
Dragon Scale - Evolves Seadra into Kingdra when Traded.
Dubious Disc - Evolves Porygon 2 into Porygon-Z when Traded.
Electirizer - Evolves Electabuzz into Electivire when Traded.
King's Rock - Evolves Slowpoke into Slowking, or Poliwhirl into Politoed when Traded. Adds the ability to cause Flinch when using a Move that deals Damage.
Magmarizer - Evolves Magmar into Magmortar when traded.
Metal Coat - Evolves Onix into Steelix, or Scyther into Scizor.
Prism Scale - Evolves Feebas into Milotic when Traded.
Protector - Evolves Rhydon into Rhyperior when Traded.
Reaper Cloth - Evolves Dusclops into Dusknoir when Traded.
Satchet - Evolves Spritzee into Aromatisse when Traded.
Up-Grade - Evolves Porygon into Porygon 2 when Traded.
Whipped Dream - Evolves Swirlix in to Slurpuff
Level-Up
Oval Stone - Evolves Happiny into Chansey when Leveling Up during the Day.
Razor Claw - Evolves Sneasel into Weavile when Leveling Up at Night. Rolls of between 18-20 count as CRITICAL when Held.
Razor Fang - Evolves Gligar into Gliscor when Leveling Up at Night. Adds the ability to cause Flinch when using a Move that deals Damage.