You can't. Palkia is from Pokemon Pearl(Generation 4) and Pokemon Ruby is a Generation 3 game. You can transfer Pokemon from Ruby to Pearl/Diamond through the Pal Park, though.
You can't. you have to transfer it from ruby, sapphire, or emerald.
You'll have to Transfer it from Ruby/Emerald or Trade it with SoulSilver.
You can find ether in pokeballs. Just look for pokeballs and you will find.
no you can transfer whenever you beat the elite four on pearl then go to the route were oak goes to then you can transfer. Caution once you transfer a Pokemon to pearl it can never go back to sapphire or ruby or any of the others.
You can't find it at Pokemon Pearl you have to Transfer it from the GBA Games Ruby/Sapphire/Emerald via Pal Park
no only the other way around
That's impossible.
You have to transfer it in to Pal park To transfer it u have to go to Pal Park and Put Ruby in ur Gba Slot and talk to some1 and it will transfer Enjoy =]
You must transfer them from ruby and sapphire they do that so its harder to get them and you buy their other games you cannot catch the 3 in diamond or pearl. you need to trade them from sapphire,emerald,and ruby(sorry)
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you need Pokemon ruby,emerald or sapphire.u have to transfer them to pearl by using pal park.