Once a legendary Pokemon has fainted it won't come back until you restart your game. This is assuming that you are talking about wild Pokemon and the ones that only appear once in the entire game.
When Articuno faints, you lost your only chance to get it. Articuno is a legendary Pokemon, and can only be battled once. If you saved beforehand, you can shut the game off and turn it back on to re-battle it. Otherwise, you can no longer get an Articuno. [blackhole23] Actually from Pokemon Platnium on the way of catching legendary pokemon has changed. If you flee or cause a stationary pokemon (such as the legendary birds in the game) then you can reappear by defeating the Elite Four again. This can be done multiple times as long as you keep defeating the Elite. For roaming Pokemon (such as Entei and Latias), if you defeat them you can go up to the person who first told you of them (Steven for Latias) in the location youfirst talked to them and they'll reappear. Hope this helps. :)
They're gone and can't come back unless you restart or have saved befor you have fought the legendary pokemon.
No it will not come back because it's a legendary Pokemon and there's only one of themActually it does come back. You have to wait a week and he will be there again to battle you.ACTUALLY, THE POKEMON DOES NOT COMEBACK UNLESS YOU RESTART YOUR GAME.
If you are referring to ones from previous pokemon games,then yes!You go to the right of the city where you get the final gym badge and in a truck you can find a person that wants to trade her Rotom for a Ditto.You can find one in the cave that leads to Kyurem(a legendary).If you are asking if when you make a legendary faint it will come back,then yes.However,this only works with Victini;an event pokemon.
yes, try catching a ditto, then a legendary pokemon. go to the 4th island, then to the day care. let them grow the legendary pokemon and ditto. then come back after some time to the old man outside and he will give you an egg which will hatch to your legendary pokemon.
Well, sometimes a roaming Pokemon will come back right away. But, nobody really knows. Today I was just searching for Pokemon to train in Eterna Forest and I kept coming across a Silcoon. It was starting to drive me crazy. So this might be close to what your situation is, my suggestion (If you are trying to find a Pokemon roaming around more than once), just keep roaming around and searching in the same place and you will probably find it again.
yes. you can rebattle all legendary Pokemon. you just need to defeat the Pokemon league first, and they will come back to life.
Speak with Professor oak he will tell you about them and then they come
all the legendary pokemon, because come on have you seen them
legendary water Pokemon after you kill them they never come back.......and regular water Pokemon is always there nomatter if you killed them....but they have to have at least 1hp left to catch any Pokemon.
Nope once its dead its deaad, I, like evereryone, suggest that you save the game before battling!!
No. If you haven't saved since then restart and try again, otherwise you missed your shot.