Pretend you are before the blizzard dev team and you have 5 minutes to explain your take on a boss encounter. Provide the "Boss, location, and the unique-ness" of the actual encounter. Here's mine.
I would implement probably the boss of all bossses.. Sargeras
And it would be a 100 man raid (hear me out) Would require the raid force of 4 25 man guilds withthe 25 man set up (2 tanks, 5 heals, rest DPS x4)
so 8 tanks, 20 heals, 72 DPS
A portal opens in one centralized location somewhere in the world, we find out this portal is a calling from the pantheon were the gods reside calling aid to defeat sargeras final assault..Himself, no more influence on demons to do his bidding, it's actually him this time. Regardless of lore, sargeras finally found a way to pass through the realms with his body in tact and has the intent to finally come to Azeroth and destroy all life as we know it.
The gods open a portal to the pantheon "the calling" and the guilds about to partake in this encounter would go through to present themselves as the champions of Azeroth to stop Sargeras. Going through the portal you would see a massive environment with the gods sitting in elevated thrones before the players telling them that "You can only request the Aid from 2 of the council" so the guilds need to decide which gods they want to assist them. Each god would be beneficial in a different way.
After speaking to the god and requesting their assistance one of those gods will create another portal to the twisting nether where Sargeras resides in anticipation of a likely attack.
Players would slow fall through (top to bottom "ground") to allow the visual "awe aspect" of how large Sargeras actually is. When players are on the ground a gauntlet would start, legions of demons attacking the raid while the Gods selected distract Sargeras while the raid group defeats the demon assault. While fighting off the hordes the players will see the gods fighting sargeras in probably the most epic of all battles. About three minutes into the fight, the gauntlet is over and the gods are slowly defeated. In a last effort one of the gods wounds Sargeras knowing that the rest is up to the raid group to finish him off while he is wounded. (Essentially the gods sacrifice themselves to allow the group to defeat sargeras)
Now the fun begins. All the tanks stack to mitigate together the heavy insane cleave damage Sargeras does, ranged would attack certain exposed target areas of Sargeras..Attacking other areas will do no damage..So if he is casting an ability, he would raise his head back and expose his neck for 30 seconds..Allowing for dps to hit the area, as well as healers to prepare for the mass AoE damage about to follow. Then he would go back to the tanks exposing his back to the melee and ranged... Consistent AoE damage from just being in his presence, Heavy tank cleave damage, mass AoE attack every 30 seconds, and a "unique" special ability.
Unique boss ability= Player sacrifice, a player must sacrifice themselves to prevent a boss ability that will wipe the raid completly.. So everytime the boss is going to use his ultiamte ability, the player who will be sacrificed would do something to increase his damage done by probably clicking something next to the boss that will trigger his own demise, and giving him a blessing of the gods..(45 seconds of 100% increased damage and crit..when debuff expires the player dies and is Not able to be rezzed) So the player must time the buff perfectly in sinc to the boss ability, to many people using the ability will result in not enough damage to boss and wiping the raid.. So the timing of this will be essential.
And then when Sargeras gets to a low enough health he would activate an ability that makes him immune to everything. Then the head god will rpesent himself and do an ability that "re-spawns" the essence of the defeated.. So all the end game bosses would ressurect and would attack Sargeras. (His immunity would only be penetrable by those of his own influence or who have experienced death since the seeting is the twisting nether) So it would make sense for all the bosses the raid has defeated to spawn and work together to defeat the boss... So basically the raid gets him to 25% HP the fight is over, and we watch another epic battle as Sargeras troops betray him.
Yogg saron would debuff sargeras to allow the other bosses to do more damage, Arthas would spawn and defile the ground below sargeras, death wing would hover above and blow fire on him causing him to burn over time, kill jaedon would spawn (full body) and summon ragnaros then they would tag team mellee the crap out of him, Illidan would spawn in demon form with glaives in tact and just go crazy.
yeah its all over the top and not possible to make this at all... But damn, to me this would be the greatest thing ever!
Hope someone took time to actually read all of this.. haha
Your turn, what encounter would you make?