Elite 4 Who?
Xatu
Will
Despite the smallness of its body, this pokemons jaws are very powerful. While the Pokémon may think it is just playfully nipping, its bite has enough power to cause serious injury.
Totodile
Poison
Bulbasaur
This gen 1 dog evolves with a fire stone
Growlithe
Gen 1
Dragonite
Drapion
Aaron
It stores berries inside its shell. To avoid attacks, it hides beneath rocks and remains completely still.
Shuckle
Water
Squirtle
3 heads are better than these 6, when using a Leaf stone
Exeggcute
gen 5
Hydreigon
Machamp
Bruno
If it builds up enough speed swimming, it can jump out above the waves and glide for over 300 feet.
Mantine
Flying
Charizard
This grass pokemon evolves into two different forms, depending on the stone used
Gloom
gen 6
Goodra
Infernape
Flint
This Pokémon is said to live at the foot of a rainbow.
Ho-Oh
Fighting
Mankey
This pokemon first evolves from friendship, then its next evolution requires a shiny stone
Togepi
gen 2
Tyranitar
Bronzong
Lucien
This Pokémon apparently used to live in much harsher environments, and thus it once had stronger psychic powers than it does now.
Stantler
Psychic
Victini
Originally evolving in the poni cavern, this pokemon later was changed to needing a thunder stone to evolve
Charjabug
Gen 3
salamence and metagross