If you mean battle him, you do that after you beat N in N's Castle.
In the dreamyard after you beat N and Ghetsis.
First of all you have to find N in N's Castle, a Zoroark will guide you there. You will battle N. When you beat him Zekrom will turn into the Dark Stone and you have to take it to Dragonspiral Tower. Catch Zekrom and then go to Giant Chasm. Kyurem will be there.
you get to see the credits and start a new adventure. [and use poketransfer]
You Get All T Gyms Badges And Challenge The Poke Leauge Beat N Aka Team Plasma and Ghetsis..Now Go MAKE ME PROUD
You must beat N and his father before you can even get close to abundant shrine.
with Pokemon
beat the Pokemon league and beat N and you use your Master Ball to catch him
Get a Sandile
You will fight Ghetsis after you beat N
you fight ghetsis
yes
Ghetsis is at N's castle after you beat N After that, he is nowhere!
You beat the champ and go to N's castle and beat him with Reshiram/Zekrom and you win!
If I'm not mistaken, N's father is Ghetitis, the evil, jerk dude you battle after you beat N, after you beat the Elite Four. He's also in the Game Intro, and he's wearing this wear red lens thing. Hope that helps! But if you're looking for him? The Shadow Triad says he escaped. Personally, I haven't captured all seven sages yet, so I don't know. If I DO find him, I'll let you know! ~Pokemon and N Fan
If you mean battle him, you do that after you beat N in N's Castle.
After you beat the elite four, there's a zoarak out side victory road . Follow that zoarak and he will lead you to n , n gives you the black stone in pokemon black , and the white stone in pokemon white. Get the stone to dragonspiral tower and it will revive. Catch the legendary pokemon and then find kyurem in giant chasm. Before you beat the elite four, you will have to beat white/black kyurem after you beat it, there's the gene wedge on the floor.use that gene wedge to fuse reshiram/zekrom to kyurem to get black/white kyurem.