This fight is crazy.

For a second-to-last boss of a tier, this fight is relatively tame.

This fight has a LOT of moving parts. It's the first real add-management fight of this tier.

This is another very straightforward fight. 

This fight is awesome. The boss is active the whole time, there are three distinct phases, and there are actually some pretty unique mechanics.

This is probably the most straightforward fight in the raid.

This fight is actually rather complex, especially for the second boss of a tier.

As usual for the first boss of a tier, this fight is very straightforward mechanically and strategically.