rayquaza, groudon, kyogre, latios or latias depending what color you choose after you beat the elite 4. The ancient Pokemon are anorith (evolves into armaldo) and lileep, and cradily. The Pokemon you can get from a cheat is mew, deoxis, and jerachi
Regigigas
you can not find the Pokemon teddiursa on Pokemon leaf green however you can find it on poken emerald :) :)
A Moonstone can be found in Meteor Falls. According to Serebii, it is the only location to find a Moonstone in Pokemon Emerald.
all the ledgendary Pokemon are the best they are equal
You can't catch Diglet on Emerald. You can obtain it from trade or hack (something I have almost no experience in)
Swim in lake find cave go in and find ledgendary
No,it is not
no
where can i find groudan in Pokemon emerald
no delibird is not a ledgendary Pokemon
yes
No, it's not.
Nooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo
Regigigas
you cant get reggiggas in Pokemon emerald
there is no mist stone in Pokemon emerald
Heatran is a ledgendary in Pokemon platinum.