People are acting like 25 man raiding is the only thing in the game. Can shamans buffs all be duplicated by other classes? For the most part yes. BUT in 10 man raiding I think a shaman will always be highly useful as they can fill in the buffs you are missing as with only 10 people you cant get every single buff covered like you can in 25 man. Its not like it used to be where you miss out on loot if you dont do 25 man raids. You can get the exact same gear as the people doing 25 man raids now as a 10 man raid guild.