Trade Evolutions in Legends: Arceus

No trade needed: Linking Cord or the item12

• Alakazam→Use a Linking Cord on KadabraCatch Kadabra at spots such as Sandgem Flats in the Obsidian Fieldlands, or catch Abra at Sandgem Flats or Windswept Run and raise it to level 16. Kadabra also lives at Lake Acuity in the Alabaster IcelandsBuy: Jubilife Village
• Machamp→Use a Linking Cord on MachokeCatch Machoke at spots such as Obsidian Falls in the Obsidian Fieldlands, or catch Machop at spots such as Oreburrow Tunnel and raise it to level 28. Machoke also roams Castaway Shore in the Cobalt CoastlandsBuy: Jubilife Village
• Golem→Use a Linking Cord on GravelerCatch Graveler at spots such as Oreburrow Tunnel (Obsidian Fieldlands) or Sandgem Flats, or catch Geodude at spots such as Oreburrow Tunnel and raise it to level 25Buy: Jubilife Village
• Gengar→Use a Linking Cord on HaunterCatch Haunter at spots such as Gapejaw Bog, Scarlet Bog or the Shrouded Ruins in the Crimson Mirelands, or catch Gastly there and raise it to level 25Buy: Jubilife Village
• Steelix→Use a Metal Coat on OnixCatch Onix at spots such as Scarlet Bog, Bolderoll Slope or Lake Valor in the Crimson MirelandsBuy: Jubilife Village
• Scizor→Use a Metal Coat on ScytherCatch Scyther at spots such as Grandtree Arena in the Obsidian FieldlandsBuy: Jubilife Village

  TipA Black Augurite turns Scyther into Kleavor instead

• Porygon2→Use an Up-Grade on PorygonCatch Porygon in a space-time distortion in the Crimson Mirelands

  TipThe Trading Post in Jubilife Village sells the Up-Grade for 1,000 Merit Points

• Porygon-Z→Use a Dubious Disc on Porygon2Catch Porygon2 in a space-time distortion in the Crimson Mirelands, or use an Up-Grade on a PorygonFind: Space-Time Distortion
• Rhyperior→Use a Protector on RhydonCatch Rhydon at spots such as Celestica Trail or Sacred Plaza in the Coronet Highlands, or catch Rhyhorn at spots such as Diamond Heath in the Crimson Mirelands and raise it to level 42Find: Space-Time Distortion
• Electivire→Use an Electirizer on ElectabuzzCatch Electabuzz at spots such as Cloudcap Pass in the Coronet Highlands. It also lives at Arena's Approach and Icebound Falls in the Alabaster Icelands, beside ElekidFind: Space-Time Distortion
• Magmortar→Use a Magmarizer on MagmarCatch Magmar at spots such as Firespit Island in the Cobalt Coastlands, or catch Magby there and raise it to level 30Find: Space-Time Distortion
• Dusknoir→Use a Reaper Cloth on DusclopsCatch Dusclops at spots such as Deadwood Haunt in the Cobalt Coastlands, or catch Duskull there and raise it to level 37Buy: Jubilife Village