You have to ask a man in pacificlog town and ask if he can see mirage island. If he does sail east till there is an island. On top of it and beside there are the lechi berries. But I bet you'll never see the mirage island!!! It appears only when the ID number correctly, the same ID as the mirage island.
The leichi berry raises the attack stat if held by a Pokemon (that what it says in heartgold but I am not sure if it's the same in emerald)
the enigma berry is impossible, the leichi berry can be obtained at mirage island or from Pokemon colosseum or Pokemon xd gale of darkness, the other berries may be able to be obtained from emerald.
There is no "easiest way" just do the normal way. Normal way: Talk to the old man in Pacifidlog Town. Once he see's it go to route 130. Look for mirage island. Note: Mirage island is not that important it only has the rare Leichi Berries and in the grass all you will find is wild Wynat.
http://www.psypokes.com/rs/berrystats.php
Mulch
The leichi berry raises the attack stat if held by a Pokemon (that what it says in heartgold but I am not sure if it's the same in emerald)
They are on Mirage Island.
the enigma berry is impossible, the leichi berry can be obtained at mirage island or from Pokemon colosseum or Pokemon xd gale of darkness, the other berries may be able to be obtained from emerald.
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There is no "easiest way" just do the normal way. Normal way: Talk to the old man in Pacifidlog Town. Once he see's it go to route 130. Look for mirage island. Note: Mirage island is not that important it only has the rare Leichi Berries and in the grass all you will find is wild Wynat.
You say hi to it.
In emerald you get them in the contest hall by making them with berries.
http://www.psypokes.com/rs/berrystats.php
Mulch
You have to wait for it to grow.
Feed them good pokeblocks from durin berries.
There are no wild Pokemon that hold Leichi Berries. Although some event Pokemon held them when they were distributed, they are only found naturally on Mirage Island in Ruby, Sapphire, and Emerald. To get to Mirage Island, you have to go to Pacifidlog Town. There is an old man looking out the window in the lower rightmost house. When you talk to him, he will tell you whether he can see Mirage Island today or not. If he can see it, it will be found on Route 130. If he cannot see it today, talk to him again tomorrow. The way he determines whether he can see it or not is he selects a random ID number and checks your party for that number. If none match he won't be able to see it.