Quote Originally Posted by LineageRazor View Post
Shiva Ex is a good idea of a step in this direction. Is she gunna sword? Or is she gunna staff? Players need to wait, be ready, and react accordingly. In sword form, she continues to randomly choose abilities and the tank must react accordingly. This is a very simple kind of randomness, to be sure, but it is still random.
Shiva goes through a set rotation for Sword. Icebrand > Glacier Bash > Whiteout.

The only random element is which weapon she chooses.

@OP - it looks like you're wanting raid bosses more like what you'd find in an action MMO. Having come to FFXIV from a game like that, I honestly don't think it would work very well for this game's combat style.

But seriously, if you don't want to do Coil, then don't do Coil. Nobody's twisting your arm.