Are Riolu/Lucario and N's Zorua available before the Elite Four/game climactic events? Try not to post any spoilers in your answers, it's just they're two pokemon I really want to use in my first play through, and if I can't get them I'll have to get them on my Black file ready to trade over
Riolu is available VERY early game in BW2, they're encountered around level 5. It should evolve fairly early as well, provided you don't let it die. And N's Zorua can be 'found' in Driftveil city, so it is found near mid-game. But yes, both are available before any climactic events.
Okay so I've just defeated Alder, meaning I'm basically done with Black now and can move onto the sequel. However, I would like to have all 152 "seen" entries in my Unova Pokédex. I'm currently missing 151, 148 (Thundurus?), 142 (Larvesta - I have the egg I just want to know if it needs hatched), 133 (Rufflet). Anyone care to point me in the right direction?
Sadly, Thundurus and Rufflet can only be seen in White, and yes the Larvesta egg needs to hatch for it to count. And 151 is Landorus, which requires both. And without Black and another (3)DS system...yeah, sadly that won't work without Wi-Fi. ):
Dayum...just like how Rufflet can't be seen in Black 2 also, so I can't do that plane thing...they really should've released like a downloadable patch for the games that changed a couple of trainers so you could see everything.
Keldeo was only obtainable via an event that was quite a while ago now, and also wi-fi trading got discontinued for any Pokemon game that isn't X & Y back in May this year so I'm afraid you're out of luck here.
Well If I remember correctly; Since you have Pokemon White 2 you can capture Regice. The only way to get the Iron Key is to Trade, Hack, or use Action Replay. It may be a little difficult now, since the Wifi discontinuation. I'm not sure if BW/2 were some of the discontinued wifi games.