Grymar said:
A stretch. Aside from it being a party versus a dragon, how is it similar?
The first attack in each instances is a area-effect breath of fire.
They both have an attack that deals damage to the targets in front. For WoW it is Onyxia's Cleave ability, for 4E it is a claw attack.
They both have a tail attack, the effects of which knock people back.
They both have another fire attack, but this is a ball of fire that targets a single target (something D&D dragons weren't previously able to do).
From the broad sense, you could say, "Dragons always had these abilities" (except for the single target fireball effect). But I think they way they laid it out, the sequence of the attacks, is pretty much spot on when you compare it to the Onxynia encounter.
Also, a lot of these attacks for the 4E dragon are now free actions or they get to take 2 standard actions in the same round. It's not like the dragon is breathing fire in round 1, clawing in round 2, tail swiping in round 3, etc. All these attacks are in the same round. In MMO-terms, this would be equivalent to doing instant attacks or attacks without some sort of delay in between. Since MMOs are real time, they aren't broken up into rounds like PnP RPGs are, they are instead delayed by how many attacks you can make in a second.