If you are talking about this Shield Slam you should know that the scenario was prepared to do an aawasomely huge Shield Slam. The slamer had on all the buffs that could multiply damage caused and the slamed has no armor and all the debuffs that can multiply damage recived.Originally Posted by Kawasaki.gdm
The regular hit of a Shield Slam in the WotLK won't be that massive. A warrior with the same equipment mentioned some posts before will Slam for about 2500 before armor reduction. I think the difference is too big for different versions of the same spell.