Stuck On Elite 4 -- Pokemon White ?

if you have surf and flash go to the cave that's in the 1st gym at use surf and you see a new route to the cave in the next part its dark use flash to make you see and if you see stairs go to it and you see a old man telling you about three new pokemon after he gets done go and if you see a pokemon its new its a steel and fighting type its a Lv.42 get it and train it to any level and you can win the one who has dark pokemon and go to pintree foreset and there's a gr type pokemon there and it a Lv. 45 or something and train it to any level.