Pokemon HeartGold Generations Evolution Changes

General Changes:

All trade evolution pokemon are now obtainable
The below requirements are only ones that I changed which deviate from vanilla. So, for example, Hisuian Sneasel still evolves into Sneasler when leveled holding a Razor Claw in the Day etc.

Pokémon	New Evolution Requirement
Litwick	Evolves at level 30
Golett	Evolves at level 35
Solosis	Evolves at level 25
Galar Yamask	Evolves into Runerigus at level 34
Vanillite	Evolves at level 25
Vanillish	Evolves at level 40
Skrelp	Evolves at level 35
Pawniard	Evolves at level 35
Dreepy	Evolves at level 30
Drakloak	Evolves at level 45
Deino	Evolves at level 30
Zweilous	Evolves at level 45
Larvesta	Evolves at level 35
Pupitar	Evolves at level 45
Dragonair	Evolves at level 45
Frigibax	Evolves at level 30
Arctibax	Evolves at level 45
Vullaby	Evolves at level 35
Rufflet	Evolves at level 35
Mienfoo	Evolves at level 35
Sliggoo (Both forms)	Evolves at level 45
Shelgon	Evolves at level 45
Klink	Evolves at level 25
Klang	Evolves at level 40
Noibat	Evolves at level 40
Axew	Evolves at level 25
Fraxure	Evolves at level 40
Gabite	Evolves at level 45
Ponyta (Both forms)	Evolves at level 30
Meltan	Evolves into Melmetal at level 55

Pokémon	Evolves Into	New Requirement
Kubfu	Urshifu	Either scroll
Eevee	Sylveon	Shiny Stone
Eevee	Espeon	Sun Stone
Eevee	Umbreon	Moon Stone
Eevee	Leafeon	Leaf Stone
Eevee	Glaceon	Ice Stone
Hisuian Qwilfish	Overqwil	Level 28
Nosepass	Probopass	Thunder Stone
Magneton	Magnezone	Thunder Stone
Charjabug	Vikavolt	Thunder Stone
Crabrawler	Crabominable	Ice Stone
Rockruff	Lycanroc (All forms)	Sun/Moon/Dusk Stone respectively
Galarian Linoone	Obstagoon	Level 35
Milcery	Alcremie	Level 20
Ursaring	Ursaluna	Use Peat Block
Bramblin	Brambleghast	Level 32
Pawmo	Pawmot	Level 32
Rellor	Rabsca	Level 32
Inkay	Malamar	Level 30
Karrablast	Escavalier	Level 30
Shelmet	Accelgor	Level 30
Dartrix	Hisuian Decidueye	Knows Triple Arrows
Dewott	Hisuian Samurott	Knows Ceaseless Edge
Quilava	Hisuian Typhlosion	Knows Infernal Parade
Exeggcute	Alolan Exeggutor	Dragon Scale
Cubone	Alolan Marowak	Fire Stone
Koffing	Galarian Weezing	Shiny Stone
Pikachu	Alolan Raichu	Sun Stone
Petilil	Hisuian Lilligant	Shiny Stone
Rufflet	Hisuian Braviary	Moon Stone
Goomy	Hisuian Sliggoo	Metal Coat
Primeape	Annihilape	Knows Rage Fist
Girafarig	Farigiraf	Knows Twin Beam
Stantler	Wyrdeer	Knows Psyshield Bash
Dipplin	Hydrapple	Knows Dragon Cheer
Bisharp	—	Evolves with Dusk Stone at night