Make a stone!

[hermesguy]

Methinks the FuyGawkes doth like the Hitmon evo line too much.

That's right. IT'S SHAKESPEARE TIME.  :{)

edit: Tutor Stone: Evolves a Pokemon, but gives you the chance to learn the moves it had not learned yet, and cannot in it's next form.

[Uncle Garnetto]

Trade stone. Evolves pokemon that need to be traded, if it needs to be traded with an item, it must still hold the item
Super stone. Allows any Pokemon that evolves by levelling up to evolve to its next form immediately.no level change
Undo stone. Allows Pokemon to unevolve(eg turns a kedabra into an abra.)
Eevee stone. It turns any eeveeloution into pheevee, a super eevee, with the ability multi type.
Draco stone. Turns any dragon type into rayquaza

[Luminoose]

Icarus stone- An old stone that was found in a construction site. Those who gaze upon it often feel as if they are flying. It's loved by a certain Pokemon (This is a stone needed to evolve a Pokemon I made up, Darminko, into a flying type).

[Hitmonchu]

Nebula Stone
Can be used to transform a Normal-type Pokemon into a Psychic-type.

Order Stone
If held by a Pokemon in battle, Ghost, Dark and Dragon-type moves will have no effect.

[Mockery for One]

Do Mega Stones count?

If so, then...

Vaporeonite, Jolteonite, Flareonite, Espeonite, Umbreonite, Leafeonite, Glaceonite, Sylveonite.

If they make that Normal type Eeveelution (called Eeveeon, essentialy a bigger Eevee), then we need Eeveeonite.

[SirBlaziken]

Revival Stone

If the holder faints, they have a 50% chance to revive at any point in the battle. One time use, and no more than one pokemon can hold it in your party.

[Dorchadas]

Icarus stone- An old stone that was found in a construction site. Those who gaze upon it often feel as if they are flying. It's loved by a certain Pokemon (This is a stone needed to evolve a Pokemon I made up, Darminko, into a flying type).

Does Darminko burn and fall into the ocean if it gets too close to a Solrock?

[Mockery for One]

This one's called a Neverstone, and it basically evolves whoever holds it upon levelup, even trade-only evolutions! Especially the ones that need a certain item, like Swirlix!

[Kitt]

I have two stones I am adding to my game. The Cold and Sky Stones.

Cold Stone-
Description: A dark blue stone that has an effect on certain Pokemon. It is cool to the touch.
Evolves
Piloswine-Mamoswine
Sneasel-Weavile
Eevee-Glaceon
Rotom-Rotom(Frost)

Sky Stone
Description: A light blue stone that has an effect on certain Pokemon. It is almost as light as air.
Evolves/Changes Form
Shaymin- Shaymin-S
Rotom- Rotom-Fan
Landorus, Tornadus, Thundorus- Therian Forms

[Mockery for One]

And, this one's called the Morality Stone, and evolves a certain Pokemon I've made up (named Atrocitree, basically an evil sapling who only exists to troll people) into a Light type (new type made up by me) (named Benevoleaf, basically good incarnate).