you just defeat the the elite four and champion again and wella. ps.i recomend using a master ball
Yes. If you use the Pokémon Action Replay then it is possible to catch zekrom before you defeat the Elites
You will be forced to battle Zekrom right before your last battle with N after you defeat the elite four for the first time.
No, you must defeat them first before the chance to catch Zekrom is given to you.
Any Pokemon could defeat Zekrom, but Dragon and Ground-Type are especially effective.
all N pokemon are only from level 50 to 60 so to defeat him you only need zekrom and samurott(emboar or serperior) more than level 70(you don't have to train zekrom because you don't have chance to do it when you captured it and battle with N right away.
You get Zekrom after you defeat every gym,(a gym leader will give a dark stone to you)defeat the elite four, and defeat plasma N Zekrom will rise from the dark stone in an awesomley great graphic way and then you get Zekrom.
After defeating N in his castle he flies away with Zekrom/Reshiram and cannot be found since.
ZEKROM!
Zekrom
Zekrom does not evolve.
Well technically Zekrom is better due to being "legendary" and also having all six stats higher on average than Eelektross. I personally don't think one Pokémon is better than the other unless it can defeat its opponent in battle. And I'd rather have an Eelektross cause I know everyone else wants a Zekrom, its good to be original.
Zekrom he is a legendary