Originally Posted by 'Rin',index.php?page=Thread&postID=137646#post1376 46
Mana spring/healing stream are not raid wide. They stack, but for group play only. Imagine 25 x healing stream or mana spring totems, lol ;-)
The original poster was asking about raid groups being composed of all shaman. While I can't speak on behalf of Sam or Prepared, I can tell you that there are virtually no bosses (especially in WOTLK) that you can steamroll by simply bringing 25 of x-class to a "raid"; some people are even questoning the viability of the 5-man shaman setup for WoTLK, especially with the pure damage that NPC warrior/paladin types are issuing in instances.
Personally, I run ten characters: 4 shaman, 2 paladins, a priest, a druid, and two mages. The mixed classes really make a difference when it comes to end-game content, as encounters are specifically designed around you bringing N-number of certain class types to a raid. Besides, if every/any T5+ instance could be steamrolled by having all of one (especially caster based, in the case of shaman) class, hardcore players could get through the entire expansion (less attunement time) within weeks, probably not more than 6 weeks at best.
Also, besides being uber fun and awesome; outside of winterspring, and as someone has pointed out - outside of a city raid, there's not a lot of content where you can bring 30+ characters into, unless you're looking at the 40 mans, which you can do now with 1 group (max 2 groups) of decently equipped characters.