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Evolution is when Pokémon change forms. There are many different ways this happens:

Contents 1 Leveling-up 2 Trading 3 Items 4 Trading with Items 5 Stones 6 Random 7 Specific-Conditions 8 Taming 9 Spectral 10 Combination

[edit] Leveling-up

Sometimes when a Pokémon levels up it evolves. To grow levels your Pokémon must get a certain amount of experience points (exp). Obviously the only way to do that is to have it participate in battle (EXP share also works).

[edit] Trading

Using a GBA link cable you can trade certain Pokémon to other trainers. Some Pokémon evolve when this happens.

[edit] Items

When some Pokémon are given items they evolve.

[edit] Trading with Items

Rare items are known to evolve Pokémon but only if they are traded with the item

[edit] Stones

Leaf, Sun, Moon, Fire, Thunder and Water Stones also evolve Pokémon, but these are rare on Pokémon Ruby and Pokémon Sapphire.

[edit] Random

Random evolution occurs when one Pokémon may turn into one of two different Pokémon.

[edit] Specific-Conditions

When it doesn't fit one of the other catergories it goes here

[edit] Taming

When Pokémon are happy enough they might evolve. In Verdanturf Town there is a lady who can rate the happiness.

[edit] Spectral

Once one Pokémon becomes two it enters this category.

[edit] Combination

If it fits 2 or more catergories it goes here.