Never seen The Maker do multiple 10 to 12k acid spray attacks before. There appears to be something bugged if he can take out a 255 warrior in 2 or 3 shots. Could not even heal fast enough to keep them standing. The second heal was casting as they died and wearing donor gear at that.

Don't attack it then :P

The Maker - NPCs - World of Warcraft

As you can see:

"Melee: A melee attack which will hit everyone in melee range and appears to have a threat reduction component.
Domination: (Mind Control on a target that increases the target's damage and healing by 100%. Domination is non dispellable)
Acid Spray: (melee range AoE spray of acid)
Throw Beaker: (throws a beaker at a target, dealing 1000-1200 nature damage and knocks target into the air)"

He has Acid Spray, but maybe dmg is bugged...

Damage is obviously bugged since WoW Head says "He doesn't hit particularly hard and can generally be burned down pretty quickly."

Damage was a definate bug over 10k. Will have to check it again now that some cleanup took place and npc's appear to be working better.

Also from what i noticed is that instance loot is bugged anyways

Instance loot set to Heroic, its a ManGoS bug I heard in other servers... mostly all instances are set to be Heroic by default, and it can't be changed.