Quoted By:
>Lapras
>Raichu
>Nidoqueen
>Arcanine
>Machamp
>Alakazam
>Snorlax
>Dragonite
>Nidoking
>Meganium
>Typhlosion
>Feraligatr
>Scizor
>Heracross
>Crobat
>Lanturn
>Quagsire
>Shuckle
>Delibird
>Mantine
>Tyranitar
>Lugia
>Ho-Oh
>Sceptile
>Swampert
>Shiftry
>Whiscash
>Gardevoir
>Sableye
>Manetric
>Toarkoal
>Flygon
>Cacturne
>Altaria
>Tropius
>Salamence
>Metagross
>Groudon
>Kyogre
>Rayquaza
>Torterra
>Infernape
>Empoleon
>Staraptor
>Luxray (Electric/Dark? Please?)
>Bastiodon
>Floatzel
>Drifblim
>Mismagius
>Ambipom
>Toxicroak
>Lumineon
>Togekiss
>Electivire
>Magmortar
>Gallade
>Gliscor
>Mamoswine
>Dialga
>Palkia
>Giratina
>Arceus
>Serperior (Gain a second type pls)
>Emboar
>Samurott (Gain a second type pls)
>Stoutland
>Gigalith
>Excadrill
>Audino
>Carracosta
>Leavanny
>Scolipede
>Krookodile
>Darmanitan
>Scrafty
>Cofagrigus
>Zoroark
>Galvantula
>Eelektross
>Druddigon
>Hydreigon
>Haxorus
>Chandelure
>Beartic
>Bisharp
>Braviary
>Volcarona
>Reshiram
>Zekrom
>Kyurem
At the very least all starters and cover legendaries should megavolve.