Consider...Al'Kabor

[Daldaen]

The problem with the titanium client is it makes some aspects of the game too easy.

Underwater zones for example in the titanium client provide unlimited far clip plane while submersed. Plane of Water is an entirely different animal when you can barely see 50' in front of you when grouping.

Playing an enchanter on Al'Kabor actually took some level of skill and quick reaction. On the titanium client it is completely trivialized due to the simple "Cycle NPCs" hotkey you can use to cycle through and mez or slow or Debuff each individual mob. I have a huge amount of respect for the main Enchanter's that solo'd and CC'd on raids on Al'Kabor. But on P99 or any server with titanium client its a complete joke.

Playing a DoT class took some level of feeling into, as you got no DoT messages and had to remember when to refresh your DoTs to maximize their damage and not let them end too early.

Etc. etc.

As much as people love to cry about "quality of life" features, the reality is the more cumbersome the client, it actually presents a more classic and realistic challenge to the content of the day.