Everyone saying how buffing HP of bosses to force guilds to go through different phases of boss encounters would be unbelievably hard for "weak guilds", will be unbelievably bored 3 weeks after Naxxramas gets released.
Someone mentioned Thaddius as one of the hardest bosses. That boss has a single mechanic that is unaffected by raid DPS - the ability to run to the other side if your debuff bar changed color, and that 3 seconds after you see the boss casting with huge lightning bolts around his hands. That is completely unrelated to "tryharding", "elite", "casual", etc. That measures players' or raid leaders' ability to say "switch" and then run for 20 yards to another side. I guess you have to be member of an "elite" guild to do that if health of the boss is increased. And I guess everyone who can't do that should still be able to kill those bosses and get loot.
Heigan? The ability to follow a pattern on the floor in regular intervals. The pattern that is NOT randomized and where there is ZERO need to be "skilled" to do it. You just need to sit down and memorize it. Do it a few times and after fifth try you will never make a mistake again. I guess you have to be member of an "elite" guild to do that if health of the boss is increased. And I guess everyone who can't do that should still be able to kill those bosses and get loot.
Loatheb? The ability to kill a spore, obtain insane amount of crit and no threat generated, and nuke the hell out of the boss. Oh and it MIGHT require you to bring 1 or 2 greater shadow protection potions, assuming you're raiding with 30 people and can't DPS him down before Inevitable Doom starts being spammed hard. I guess you have to be member of an "elite" guild to do that if health of the boss is increased. And I guess everyone who can't do that should still be able to kill those bosses and get loot.
Maexxna? You have to shoot some cocoons and kill some spiders. I guess you have to be member of an "elite" guild to do that if health of the boss is increased. And I guess everyone who can't do that should still be able to kill those bosses and get loot.