Pathway to Dragonspiral Tower
Oddly enough, there's a little walkway just outside of... the outside of Dragonspiral Tower. Yeah, it's weird, but it does have slightly different encounters, plus there's a ramp made out of snow that appears only during the winter which leads you to a NeverMeltIce (raises the power of Ice-type attacks when held).
Dragonspiral Tower (Outside)
As you can see, there are quite a few Pokemon to find here! If it's winter, you'll run into a few different ones. Anyway, when you arrive at the foot of Dragonspiral Tower, you'll find Cedric Juniper there and he'll talk about the events two years ago. He'll then notice your Dark Stone or Light Stone, say some more stuff about it, and then give you some Old Gateau before leaving. Yum.
You can waltz right on into the tower if you want, but if you have Surf handy, you can swim on over across the pond to pick up a Carbos, as well as the tall and thick grass.
|Golurk||/||Lv. 55 ~ 58||50%|
|Druddigon||Lv. 56 ~ 58||30%|
Dragonspiral Tower 1F
The first floor is pretty straightforward. Extremely straightforward. Just follow the path and you'll find some stairs. Cool!
Dragonspiral Tower 2F
Up here, you can save some time if you have Strength, but otherwise you'll have to take the long route. Either way, you'll have to head north. Pushing the boulder out of the way leads you to the stairs, but if you don't have Strength handy, you can still get there by continuing north, picking up the hidden Red Shard in the rubble as well as the Elixir underneath one of the fallen columns.
Keep going until you find a broken pillar you can climb on the far right side of the room, then walk across it until you reach the stairs where you would have arrived had you pushed the boulder. Before continuing, pick up the Ultra Ball sitting on a broken column.
Dragonspiral Tower 3F
In the next room, you'll climb up some stairs before finding a series of one-way ledges that you can jump across. Jump down the one leading south and you'll be presented with three ledges you can hop across.
Ignore the top ledge. The bottom one will take you to where you want to go, but taking the middle one leads you over to a Shiny Stone, which is always a nice thing to pick up so you can evolve some of your Pokemon. Keep jumping along to the north and then east until you find yourself on the same platform as a Protein, which is, once more, a decent item. Hopping south will lead you back to the beginning.
Back at the beginning, take the bottom ledge and follow it until you reach the platform with the stairs leading up. Assuming you picked up the items listed above, there's nothing more for you to worry about here, so just head on up to the next floor.
Dragonspiral Tower 4F
This floor is fairly straightforward. Just follow the path up all of the stairs until you find a fork in the road, with stairs leading up and east. Swing by to the east to pick up the trio of items for your Sinnoh Legendary Pokemon: the Adamant Orb, the Lustrous Orb, and the Griseous Orb. Keep in mind that you can't actually catch Dialga, Palkia, or Giratina in Black 2 or White 2, so you'll need to transfer them from a previous version (or obtain them from the Pokemon Dream Radar app for the 3DS while you have Diamond, Pearl, or Platinum inserted into your 3DS).
Now head up the stairs to the next floor.
Dragonspiral Tower 5F
Ah, the cylinder room. This one is interesting because the whole room will move along with you (well, at least the camera will, making it seem so).
Start by heading east and then across the bridge to the third ring from the center. Head west and across the bridge to the second ring to pick up the mighty TM02 (Dragon Claw), which is a reliable 80 power Physical-based Dragon-type attack that a variety of clawed Pokemon can learn.
Hop across the ledge and head east until you run into the bridge leading into the center ring. Pass by it for now and walk a few more steps to the east until you see the two bridges right next to each other. Walk across both of them and then west to pick up the PP Max, which is a rare item, indeed, that's the equivalent of 3 PP Ups.
Alright, now return to the bridge leading to the center ring and cross it. From there, take a right and jump across the ledge, then cross the bridge to reach the second ring from the center. Follow the path until you're at the third ring from the center, by the bridge leading to the outermost ring. Keep going east to pick up a Max Revive (them dragons keep a lot of good items here!), then go back and cross the bridge, heading west until you reach the stairs leading you up to the next floor.
Dragonspiral Tower 6F
Again, this is a rather straightforward floor. Just follow the path north and pick up the valuable Comet Shard, which can be sold to the Ore guy in the Icirrus City Pokemon Center for a whopping $60,000! Very nice, indeed. Nothing else though to worry about on the floor, so keep going until you reach the stairs up to the top floor.
Dragonspiral Tower 7F
Ok, this is it! Walk across the narrow pathway and over to the middle of the room. The whole place will shake and you'll be presented with a question asking whether or not to use the Dark or Light Stone (depending on which version you're playing). If you answer Yes, you'll summon the legendary Pokemon that N used — either Zekrom (Black 2) or Reshiram (White 2) — although you won't have to fight it right away. You'll be presented with a cool cutscene, which is mostly the same one from the original Black and White, although with the background set in Dragonspiral Tower instead of N's Castle.
Why isn't Reshiram/Zekrom appearing?!
If you make it all the way to the top of the Dragonspiral Tower and you find that nothing's happening up there, that means you haven't gotten the Dark Stone or Light Stone from N in N's Castle. You'll want to return to Victory Road, where the Zoroark is (it's down the eastern path after heading south from the Pokemon League entrance), follow it to N's Castle, and then fight N there. Only after defeating him will you have the Dark Stone or Light Stone necessary to summon Zekrom or Reshiram respectively.
Before fighting the legendary Pokemon, you're going to want to make sure you save your game! Otherwise, you'll have to defeat the Elite Four and Champion again in order for it to reappear, and they use much, much stronger Pokemon after beating the game the first time. Additionally, you might as well sneak around the legendary Pokemon and pick up the hidden Comet Shard in the northeast corner of the arena. I told you them dragons know how to live!
While Reshiram and Zekrom may be at a high level, they thankfully have a very manageable catch rate, making them easy to catch. Opening the fight with a Quick Ball may fetch immediate results, but otherwise strike it with Ice-type attacks for Zekrom, Rock-type attacks for Reshiram, or Ground- or Dragon-type attacks for either of them. They should be sturdy enough to survive at least one hit from those attacks, although you may have to use a weaker attack afterwards to lower their HP.
Anything less than around 40% HP should be fine enough to catch it, even with an Ultra Ball, although if you can wait ten turns out, you'll find that Timer Balls are your best bet. Keep in mind that both have Imprison, which will prevent your Pokemon from using any of their attacks — that means no Dragon Claw while fighting Zekrom and no Dragon Pulse while fighting Reshiram, assuming it uses Imprision on you. It's not a huge deal, but it may cause you trouble if that's what you were planning on doing.
As before, Excadrill is a decent Pokemon to use against Zekrom, as none of its attacks hit that well. Tyranitar (which you can catch on Route 15, preferably as a high-level Pupitar and then level it up one level) also works against Reshiram, but you have to be careful due to Sand Stream whittling away its HP each turn.
After catching Zekrom or Reshiram (or knocking it out), N will appear and will tell you to return to the Giant Chasm to find another of his 'friends.' He'll then head off, back to his castle, where you can fight him once per season after you've run into him on the Nimbasa City Ferris Wheel (although he is very strong, so you aren't likely to be able to win against him just yet!). He uses a different team depending on the season, too.
Well, now that you've got your legendary Pokemon, you can use Fly on the top floor to escape. You should return to Lacunosa Town, so you can make your way back to the Giant Chasm. (You did activate the shortcut to the Giant Chasm with Strength, right? Otherwise, get there from Route 22.)